premise: A man and his son riding bikes down the sidewalk.
hypothesis: the man and his son were watching a parade
explanation_1: One cannot be riding bikes down the sidewalk and watching a parade simultaneously.
explanation_2: A man and his son cannot be riding bikes down the sidewalk if they were watching a parade.
explanation_3: It would be difficult to be watching a parade while also riding bikes, they are not usually done at once.
premise_logic: exists s1 x1 x2 x3 x4 x5.(n_sidewalk(x5) & a_topic(s1) & subset_of(x2,s1) & down(x2,x5) & n_bike(x2) & of(x2,x4) & n_riding(x4) & of(x2,x3) & n_son(x3) & of(x2,x1) & n_male(x1) & subset_of(x1,s1) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(n_son(x3) & of(x3,x2) & n_male(x2) & n_man(x2) & Theme(e1,x4) & Actor(e1,x1) & v_watch(e1) & n_parade(x4) & subset_of(x3,x1) & subset_of(x2,x1))
premise_sim: exists s1 x1 x2 x3 x4 x5.(subset_of(x2,s1) & subset_of(x1,s1) & of(x2,x4) & of(x2,x3) & of(x2,x1) & n_son(x3) & n_sidewalk(x5) & n_riding(x4) & n_man(x1) & n_male(x1) & n_bike(x2) & down(x2,x5) & a_topic(s1))
hypothesis_sim: exists e1 x1 x2 x3 x4.(v_watch(e1) & subset_of(x3,x1) & subset_of(x2,x1) & of(x3,x2) & n_son(x3) & n_parade(x4) & n_man(x2) & n_male(x2) & Theme(e1,x4) & Actor(e1,x1))