premise: A teenage is on a surfboard.
hypothesis: a teanager stile a surfboard
explanation_1: Teenage implies teenager.
explanation_2: To stile is to be on.
explanation_3: Being on a surfboard requires climbing on a surfboard.
premise_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_surfboard(x2)) & n_teenage(x1))
hypothesis_logic: all x1.(n_surfboard(x1) -> exists x2 x3.(a_topic(x2) & for(x2,x1) & n_stile(x2) & of(x2,x3) & n_teanager(x3)))