. . "8.1"@en . . "social_interaction(during(E), Agent_i, Agent_j) about(E, Topic)" . . "NP V PP.theme whether/if S"@en . "Agent [+plural] V {about} Topic [+wh_comp]" . . "0.2"@en . . "P-WH-S; about-PP"@en . . . . .