premise: a skier doing a trick on pole while being photographed by another man
hypothesis: Man photographs skier performing a trick.
explanation_1: Both sentences have the premise of a man taking a picture of a skier doing a trick. Sentence one just clarifies that the trick is done on a pole.
explanation_2: Performing a trick is the same thing as doing a trick.
explanation_3: A skier trick is being photographed by a man
premise_logic: exists e2 e1 x1 x2 x3 x4 x5 x6.(n_man(x5) & a_topic(x1) & while(e1,e2) & Actor(e2,x6) & n_man(x6) & -(x6 = x5) & Theme(e2,x2) & v_photograph(e2) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & on(x3,x4) & n_pole(x4) & n_trick(x3) & (x1 = x2) & n_skier(x1))
hypothesis_logic: exists e1 p1 x1 x2.(exists e2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_perform(e2) & n_trick(x3)) & Topic(e1,p1) & Actor(e1,x1) & v_skier(e1) & n_photograph(x1) & of(x1,x2) & n_man(x2))
premise_sim: exists e2 e1 x1 x2 x3 x4 x5 x6.(while(e1,e2) & v_photograph(e2) & v_do(e1) & on(x3,x4) & n_trick(x3) & n_skier(x1) & n_pole(x4) & n_man(x6) & n_man(x5) & a_topic(x1) & Theme(e2,x2) & Theme(e1,x3) & Actor(e2,x6) & Actor(e1,x2) & -(x6 = x5) & (x1 = x2))
hypothesis_sim: exists e1 p1 x1 x2.(v_skier(e1) & of(x1,x2) & n_photograph(x1) & n_man(x2) & exists e2 x3.(v_perform(e2) & n_trick(x3) & Theme(e2,x3) & Actor(e2,x1)) & Topic(e1,p1) & Actor(e1,x1))