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There are 555 twenty-letter words containing I, O, 2R and 2S

(page 4)

retrotranspositionalreturn␣demonstrationsreverse␣transcriptionrides␣the␣cock␣carouselrights␣of␣first␣refusalRNA␣expression␣patternRNA␣expression␣profileRobertson␣screwdriverRobinson␣Crusoe␣IslandRocky␣Mountain␣oystersrolls␣over␣in␣one's␣graveRorschach␣inkblot␣testrose-colored␣starlingsrose-coloured␣starlingrotational␣symmetriesruffling␣some␣feathersrusset␣ground␣squirrelsail␣under␣false␣colorsSaint-Georges-sur-LoireSapir-Whorf␣hypothesissaskatoon␣blueberriesscalar␣triple␣productsscheduled␣territoriesSchrodinger␣equations Schdinger␣equationsSchrodinger's␣equation Schdinger's␣equationSchroedinger's␣kittensscimitar-horned␣oryxesscinticisternographyscrawny␣drinks␣of␣waterseasonal␣mood␣disordersecoisolariciresinolsecond-person␣singularsecular␣progressivismsegregation␣distorterselenotranscriptomesselenotranscriptomicseparation␣of␣concernsset␣the␣record␣straightshareholders'␣meetingsshopkeeper's␣privilegeshown␣one's␣true␣stripesshows␣one's␣true␣stripesSiemens-Martin␣processsigma-delta␣converterssign␣one's␣death␣warrantsilent␣forest␣syndromesinapoyltransferasessisters␣before␣mistersSkinner's␣ground␣mantisslip␣through␣the␣crackssocial␣justice␣warriorsocial␣security␣numberSoemmerring's␣gazellessomatic␣sensory␣cortexsomatorepresentationsome␣something␣or␣otherSonogashira␣reactionsSouthern␣lady's␣slipperSouth␣GloucestershireSouth␣Park␣Republicansspecial␣interest␣groupspecial␣unitary␣groupsspectromicroscopicalspherical␣aberrationsspherical␣coordinatesspinoreticular␣tractsspondylarthropathiessports␣entertainmentsstandard␣of␣comparisonstandard␣transmissionstarts␣the␣ball␣rollingstate-owned␣enterprise state␣owned␣enterprisestatutory␣authoritiesstatutory␣instrumentsstereobiomicroscopicstereoisomerizationssternocostal␣trianglestorage␣power␣stationsstorm␣in␣a␣glass␣of␣waterStrasbourg␣turpentinestructural␣isomerismssubcommissural␣organssubsynchronous␣orbitsSumatran␣rhinocerosessummer␣penile␣syndromesun␣protection␣factorssun-synchronous␣orbitssuperfluous␣intervalssuperiority␣complexessuperior␣nasal␣conchaesuperior␣tarsal␣musclesupermajoritarianismsupersymmetrizationssupertransformationssure␣hands␣on␣the␣tillersurfaces␣of␣revolutionsurface-to-air␣missilessurrogate␣advertisingsynaptoarchitecturessynchronisation␣proxysynchronised␣swimmerssynchronization␣gearssynchronized␣swimmerstear␣a␣strip␣off␣someonetemperate␣rainforeststephrostratigraphiesteratocarcinogenesisterrestrial␣telescopetetraphenylarsoniumsTheir␣Royal␣Highnessesthermokeratoplastiesthermoresponsivenessthe␣world␣is␣one's␣oysterthird␣party␣processorsthird-person␣singulars

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