premise: A girl crosscountry skis.
hypothesis: A girl is wearing a cap.
explanation_1: Not all skiers wear a cap.
explanation_2: It is not necessary the girl should be wearing a cap during skis.
explanation_3: A girl may be clothed or a girl may be nude; a girl may wear a cap or a girl may not be wearing a cap; while it is almost entirely likely girl is clothes while skiing cross country, it is not certain. Since there is more than one possibility with a cap, it is not certain that girl is wearing a cap.
premise_logic: exists x1 x2 x3.(a_topic(x1) & n_ski(x1) & of(x1,x3) & n_crosscountry(x3) & of(x1,x2) & n_girl(x2))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_cap(x2) & n_girl(x1))
premise_sim: exists x1 x2 x3.(of(x1,x3) & of(x1,x2) & n_ski(x1) & n_girl(x2) & n_crosscountry(x3) & a_topic(x1))
hypothesis_sim: exists e1 x1 x2.(v_wear(e1) & n_girl(x1) & n_cap(x2) & Theme(e1,x2) & Actor(e1,x1))