premise: A young woman in a colorful wetsuit practices water boarding.
hypothesis: A young is not practicing torture.
explanation_1: Note: 2nd sentence has important grammar errors. A young what? I'll assume "woman"  The woman is practicing water boarding, which is a form of torture. Therefore, it's a false statement to say the young (woman) is not practicing torture.
premise_logic: exists s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & n_boarding(x2) & of(x2,x5) & n_water(x5) & of(x2,x4) & n_practice(x4) & of(x2,x3) & n_wetsuit(x3) & a_colorful(s2) & Theme(s2,x2) & n_woman(x1) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists x1.(-exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_practice(e1) & n_torture(x2)) & n_young(x1))
premise_sim: exists s1 s2 x1 x2 x3 x4 x5.(of(x2,x5) & of(x2,x4) & of(x2,x3) & n_woman(x1) & n_wetsuit(x3) & n_water(x5) & n_practice(x4) & n_boarding(x2) & in(x1,x2) & a_young(s1) & a_topic(x1) & a_colorful(s2) & Theme(s2,x2) & Theme(s1,x1))
hypothesis_sim: exists x1.(n_young(x1) & all e1 x2.(-v_practice(e1) | -n_torture(x2) | -Theme(e1,x2) | -Actor(e1,x1)))