premise: Children and adults swim in large pool with red staircase.
hypothesis: Children are trying to learn how to swim with their parents in a large pool with a red staircase.
explanation_1: Children swimming does not imply that they are trying to learn how to swim.  Children and adults together does not necessarily mean the adults are their parents.
explanation_2: Just because children and adults swim in large pool with red staircase does not mean they are learning how to swim with their parents.
explanation_3: Not all adults are parents.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5.(with(e1,x5) & n_staircase(x5) & a_red(s2) & Theme(s2,x5) & in(e1,x4) & n_pool(x4) & a_large(s1) & Theme(s1,x4) & Actor(e1,x1) & v_swim(e1) & subset_of(x3,x1) & n_adult(x3) & subset_of(x2,x1) & n_child(x2))
hypothesis_logic: exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 p2 s1.(a_how(s1) & Manner(e2,s1) & Topic(e2,p2) & Actor(e2,x1) & v_learn(e2) & exists e3 s2 s3 x3 x4.(with(e3,x4) & n_staircase(x4) & a_red(s3) & Theme(s3,x4) & with(e3,x2) & in(x2,x3) & n_pool(x3) & a_large(s2) & Theme(s2,x3) & Actor(e3,x1) & v_swim(e3))) & n_parent(x2) & of(x2,x1) & n_thing(x1) & n_child(x1))
premise_sim: exists e1 s1 s2 x1 x2 x3 x4 x5.(with(e1,x5) & v_swim(e1) & subset_of(x3,x1) & subset_of(x2,x1) & n_staircase(x5) & n_pool(x4) & n_child(x2) & n_adult(x3) & in(e1,x4) & a_red(s2) & a_large(s1) & Theme(s2,x5) & Theme(s1,x4) & Actor(e1,x1))
hypothesis_sim: exists e1 p1 x1 x2.(v_try(e1) & of(x2,x1) & n_thing(x1) & n_parent(x2) & n_child(x1) & exists e2 p2 s1.(v_learn(e2) & exists e3 s2 s3 x3 x4.(with(e3,x4) & with(e3,x2) & v_swim(e3) & n_staircase(x4) & n_pool(x3) & in(x2,x3) & a_red(s3) & a_large(s2) & Theme(s3,x4) & Theme(s2,x3) & Actor(e3,x1)) & a_how(s1) & Topic(e2,p2) & Manner(e2,s1) & Actor(e2,x1)) & Topic(e1,p1) & Actor(e1,x1))