Abbreviations : Trig./Arg./Group./Modif.=event trigger detection/argument detection/argument grouping/modification detection , BI=Bioinformatician , NLP=Natural Language Processing researcher , CS=Computer scientist , CoreNLP=Stanford CoreNLP , Porter=Porter stemmer , Snowball=Snowball stemmer McCCJ=McClosky-Charniak-Johnson parser , LGP=Link Grammar Parser , SD=Stanford De-