premise: Boy jumps in desert while others watch and take photo.
hypothesis: A boy is acting for a group of people.
explanation_1: A boy who jumps while others watch and take photos does not mean he is acting.
explanation_2: You can not infer it's for a group of people.
explanation_3: It can't be implied that the boy is acting rather than playing or doing another activity.  The people watching may not be a part of a group.
premise_logic: (x)
hypothesis_logic: exists e1 x1 x2 x3.(for(e1,x2) & of(x2,x3) & n_people(x3) & n_group(x2) & Actor(e1,x1) & v_act(e1) & n_boy(x1))