premise: Tourists enjoying mother nature.
hypothesis: Naturalist taking a vacation.
explanation_1: Just because tourists are enjoying mother nature does not mean they are a naturalist.
explanation_2: Tourists enjoying mother nature doesn't imply naturalists are taking a vacation.
explanation_3: Not all tourists are taking a vacation.
premise_logic: exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & n_nature(x3) & of(x3,x4) & n_mother(x4) & (x1 = x2) & n_tourist(x1))
hypothesis_logic: exists e1 x1 x2.(ne_nam_naturalist(x1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_vacation(x2))
premise_sim: exists e1 x1 x2 x3 x4.(v_enjoy(e1) & of(x3,x4) & n_tourist(x1) & n_nature(x3) & n_mother(x4) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2.(v_take(e1) & ne_nam_naturalist(x1) & n_vacation(x2) & Theme(e1,x2) & Actor(e1,x1))