"NP-PP; of-PP"@en . . . "Cause V Source {of} Theme [-sentential]" . . . . "0.2"@en . . . . "0.2"@en . "NP V NP PP.theme"@en . . . . "cause(Cause, E) not(free(start(E), Theme, Source)) free(end(E), Theme, Source)" . .