... sentence.“Preceding Entity and Prev Word are fea-tures that capture specifically words for conjunc-tions such as and or “, (comma)”, e.g., for thephrase “OCIM1 and K562”, both “OCIM1” and “K562” are ... Example of FeaturesStart/End Word ws, weInside Word ws, ws+1, , we Context Word ws−1, we+1Start/End SP sps, speInside SP sps, sps+1, , spe Context SP sps−1, spe+1is ... capitalization and word formation of ws weChunk FeaturesWhole chunk ws+ ws+1+ + we Word/ POS/SC End Bi-grams we−1+ we, pe−1+ pe, sce−1+ sceLength, Length and End Word |s|, |s|+weCount...