premise: A passenger wearing a life jacket prepares to take a picture of a whale very close to the boat.
hypothesis: A man is using a camera.
explanation_1: Man is a passenger, and prepares to take a picture is a rephrasing of is using a camera.
explanation_2: A camera is used to take a picture. prepares to take a picture is rephrased as using a camera.
explanation_3: A passenger is a man on a boat and because the whale is very close he is using a camera to take a picture.
premise_logic: exists e2 e1 p1 x1 x2 x3 x4 x7.(n_boat(x7) & Topic(e2,p1) & Actor(e2,x1) & v_prepare(e2) & exists e3 x5 x6.(r_very(e3) & to(e3,x7) & r_close(e3) & Theme(e3,x5) & Actor(e3,x1) & v_take(e3) & of(x5,x6) & n_whale(x6) & n_picture(x5)) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_jacket(x3) & of(x3,x4) & n_life(x4) & (x1 = x2) & n_passenger(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_camera(x2) & n_man(x1))