premise: A hiker pokes his head out of a tent high in the mountains.
hypothesis: The hiker is swimming in a pool.
explanation_1: The hiker has to be either in the pool or in the tent.
explanation_2: A person cannot poke their head out of a tent and swim at the same time.
explanation_3: If the hiker is poking his head out of a tent, he can not be swimming.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_mountain(x4) & of(e1,x3) & in(x3,x4) & n_high(x3) & a_tent(s1) & Theme(s1,x3) & r_out(e1) & Theme(e1,x2) & Actor(e1,x1) & v_poke(e1) & n_head(x2) & of(x2,x1) & n_male(x1) & n_hiker(x1))
hypothesis_logic: exists e1 x1 x2.(n_hiker(x1) & in(e1,x2) & n_pool(x2) & Actor(e1,x1) & v_swim(e1))