• Occasionally whole classes of molecules receive a single CAS number: the group of enzymes known as alcohol dehydrogenases has 9031-72-5.

Occasionally, hostile fleets may camp outposts and stations to keep an enemy bottled up, during the Goonswarm invasion of the Delve region the Goons scored a massive strategic victory by camping KenZoku ( formerly known as BOB ) fleet into a single station for an entire month.

Occasionally an entire month's issue would be devoted to a single country, past civilization, a natural resource whose future is endangered, or other theme.

Occasionally, a person is referred to by a single name.

Occasionally, a single corps might operate independently as if it were a small army.

Occasionally, due to popular demand, the longer version of a song will be played over the shorter version, such as " Like a Rolling Stone " by Bob Dylan, which was released on a 7 " single featuring the first two verses on side 1 and the rest of the song on side 2.

Occasionally her arrangements intentionally mimic works by other performers, most noticeably on " Rainy Day Parade " from 2000's Pink Pearl, which quotes TV's The Mary Tyler Moore Show theme to lend ironic triumphalism to a song about a woman going back on anti-depressant medication, and " Cinnamon Park " from the 2004 album Underdog Victorious, which paraphrases portions of the 1972 single " Saturday in the Park " by the band Chicago.

Occasionally, truly masterful clues are given: for example the film Dirty Harry was clued with the single line " Potter!

Occasionally well-aged grain whiskies are released as " single grain whisky " or " blended grain whisky " in Scotland, and the best of these can be held in the same league as single malts.

Occasionally, however, very small groups form that include only a single adult male and several adult females.

Occasionally he also accompanied the band on their Dark Passion Play tour and features on the music video for the single " The Islander ".

Occasionally, people who oppose a protest group will single out Chu as an example of the protest group's incoherent message not realizing that he is not protesting on the same terms as the other protesters in the group.

Occasionally a single hall would be used by all the city's guilds.

Occasionally, a cassette single would also be released in two cassette formats simultaneously: a traditional Cassette single with two tracks and a Cassette maxi-single with four or more tracks, generally remixes.

Occasionally anticyclonic tornadoes occur as an anticyclonic companion ( mesoanticyclone ) to a mesocyclone within a single storm.

Occasionally, a hurricane that has made landfall in the Gulf of Mexico will reach Fort Payne as a tropical storm or tropical depression.

Occasionally in December and January young grey seals are washed ashore on Amrum's beaches due to storm surges and are thereafter nursed by the adults.

Occasionally, when a cold, wet storm comes in from the Gulf of Alaska or Canada, Mt.

Occasionally they meet and spar with their horns in a ritualised manner and rarely serious fights will take place.

Occasionally, during off-peak times, only one base dealer will be attending the table, rendering only half the table open for bettors or one of the two base dealers will assume the role of the stickman.

Occasionally opposing teams will wear their white jerseys at home to try to invoke the curse.

Occasionally, acoustic-electric and electric guitars will have built-in effects.

Occasionally a successor design will discontinue or alter the meaning of some instruction code ( typically because it is needed for new purposes ), affecting code compatibility to some extent ; even nearly completely compatible processors may show slightly different behavior for some instructions, but this is seldom a problem.

Occasionally, moisture from the Arizona Monsoon will cause summer thunderstorms ; Pacific storms may blanket the area with snow.

Occasionally the player will have a straight or flush with two pair ; in that case, he should play as if it were two pair and ignore the straight or flush.

Occasionally a performer will deviate from the intended sequence of events.

Occasionally, a wrestler will reach for a rope ( see rope breaks below ), only to put his hand back on the mat so he can crawl towards the rope some more ; this is NOT a submission, and the referee decides what his intent is.

Occasionally, a move will be banned, either in kayfabe or legitimately, and subsequently, its use will result in a disqualification.

Occasionally it will run an extended sequence on a given theme over a week or two.

Occasionally a more talented child may do card tricks, play the mouth organ, or something even more impressive, but most children will earn plenty of treats even with something very simple.

Occasionally, she will wander for a considerable time, and eventually fly away without biting.

Occasionally, an old stock document will be found that still has value as a stock in a successor company.

Occasionally, a band will forgo traditional uniforms in favor of costumes that fit the theme of its field show.

Occasionally, and this will depend on the rules of the business, a foreign key value can be null.

Occasionally shops in Australia will label the purple variety " purple sweet potato " to denote its difference to the other varieties.

Occasionally, female boars will attack if they feel their piglets are threatened, especially if a human physically comes between them and their young.

Occasionally, Murcia has heavy rains where the precipitation for the entire year will fall over the course of a few days.

Occasionally the home kit will be altered by the shorts and socks, sometimes replacing the black socks with white ones ; or replacing the white shorts and black socks combination with royal blue shorts and socks.

Occasionally in the large intestine ( 2-3 times a day ) there will be mass contraction of certain segments, moving a lot of faeces along.

Occasionally, cryptogram puzzle makers will start the solver off with a few letters.

Occasionally, the old ( occluded ) mesocyclone and the new mesocyclone produce a tornado at the same time.

Occasionally this mechanism may yield a shorter evolutionary route to another desirable or favorable evolutionary energetic minimum although one would generally expect it to produce unviable or unfavorable leaps in sequence space.

Occasionally, severe thunderstorms can and do produce a tornado without warning.

Occasionally the infection can be extensive and persistent if the animal does not produce an immune response.

Occasionally, a mating between a female of one species and a male of another produces a parthenogen, a female that is able to produce viable eggs that are genetically identical to her own cells.

Occasionally, it is used to produce a fruit drink which has a very distinctive taste.

Occasionally occurring recessive white birds were crossed with white Plymouth Rocks and White Leghorn to produce White Barnevelders.

Occasionally they produce documentary films on aspects of traditional arts ; Smithsonian folklorist Marjorie Hunt won an Academy Award for her 1984 short documentary film The Stone Carvers about the carvers at the National Cathedral in Washington, D. C.