There are three main tasks for relational similarity.
(graduate)" can be "c n ê (Obama), o Ú (President), u (from), M Ã (Harvard)", while a dependency context of the same word can be "1991c/ADV, o Ú/SBV, u/CMP, { AE /POB u" 1 , where "ADV, SBV, CMP, POB" indicate adverbial modifier, subject, complement and prepositional object, respectively.