Unlike open-domain coreference resolution, which aims to resolve all pronominal and nominal mentions in text, here we consider as anaphors only entity and event mentions that participate in fragments of protein signaling pathways.
we only consider entity mentions that are arguments of relevant biochemical interactions previously extracted by Odin (e.g., phophorylations, ubiquitinations, bindings, translocations), and nominal event mentions, e.g., "this binding".