premise: Two children in a bag race competing against each other while another boy watches on.
hypothesis: There are three children.
explanation_1: Answer: Three children are the two children and another boy.
explanation_2: Two children while another boy watches are three children.
explanation_3: The total number of children is three children
premise_logic: exists e1 p1 x1 x2 x3 x4 x6.(n_boy(x6) & a_topic(x1) & in(x1,x2) & exists e2 s1 x7.(a_on(s1) & Manner(e2,s1) & Actor(e2,x7) & v_watch(e2) & n_boy(x7) & -(x7 = x6)) & while(e1,p1) & all x5.(n_other(x5) -> against(e1,x5)) & Actor(e1,x4) & v_compete(e1) & (x2 = x4) & n_race(x2) & of(x2,x3) & n_bag(x3) & n_child(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2.((x1 = x2) & n_child(x2) & card_eq_3(x2))