http://premon.fbk.eu/resource/vn33-indicate-78-1_frame_2 an entity of type: VerbNetFrame

8.1 
NP V PP.recipient whether/if S 
PP-WH-S; to-PP 
indicate(during(E), Causer, Recipient, Topic) 
Causer V {to} Recipient Topic [+wh_comp] 
0.1 

data from the linked data cloud