premise: Two people are riding at once on one single bicycle.
hypothesis: Two people taking a ride together on a bicyle outside.
explanation_1: Rising at once on one single bicycle could also be said as ride together on a bicycle
explanation_2: Taking a ride is a paraphrase of are riding, and at once implies together.
explanation_3: Two people riding at once on a single bicycle implies they are riding together.
premise_logic: exists e1 s1 x1 x2 x3.(r_at(e1) & card_eq_1(x3) & n_time(x3) & Frequency(e1,x3) & on(e1,x2) & n_bicycle(x2) & a_single(s1) & Theme(s1,x2) & card_eq_1(x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x4) & n_outside(x4) & of(x4,x5) & n_bicyle(x5) & a_together(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & n_ride(x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))