premise: Grading and pricing fish in an open air fish market.
hypothesis: A child stares at a fish tank as guppies and goldfish swim by.
explanation_1: A child wouldn't be grading and pricing fish.
explanation_2: The first sentence takes place in a fish market the second sentence takes place in a fish tank.
explanation_3: A fish market sells fish to eat, whereas a fish tank holds pet fish
premise_logic: exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(s1) & subset_of(x2,s1) & in(x2,x4) & n_market(x4) & of(x4,x6) & n_fish(x6) & of(x4,x5) & n_air(x5) & a_open(s2) & Theme(s2,x4) & n_fish(x2) & of(x2,x3) & n_pricing(x3) & subset_of(x1,s1) & n_grading(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(a_by(s1) & Manner(e1,s1) & at(e1,x2) & as(x2,x4) & n_swim(x6) & of(x6,x7) & n_goldfish(x7) & n_guppy(x5) & subset_of(x6,x4) & subset_of(x5,x4) & n_tank(x2) & of(x2,x3) & n_fish(x3) & Actor(e1,x1) & v_stare(e1) & n_child(x1))