premise: Seven people are riding bikes on a sandy track.
hypothesis: The people are riding bikes.
explanation_1: Riding bikes on a sandy trick implies riding bikes.
explanation_2: There are people riding their bikes.
explanation_3: Seven people are people.
premise_logic: exists e1 s1 x1 x2 x3.(on(e1,x3) & n_track(x3) & a_sandy(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_people(x1) & card_eq_7(x1))
hypothesis_logic: exists e1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2))