http://premon.fbk.eu/resource/vn32-discover-84-1_frame_6 an entity of type: VerbNetFrame

8.1 
NP V PP.source PP.theme what S_INF 
PP-P-WHAT-TO-INF; from-PP about-PP 
discover(during(E), Agent, Theme, Source) 
Agent V {from} Source {about} Theme [+wh_inf] 
0.1 

data from the linked data cloud