premise: A group of people in bright green vests are purchasing food.
hypothesis: A group of people buy food.
explanation_1: Purchasing and buying are the same verb.
explanation_2: Purchasing is a synonym of buy.
explanation_3: purchasing food is inferred as buy food.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_purchase(e1) & n_food(x4) & of(x1,x2) & in(x2,x3) & n_vest(x3) & a_green(s2) & Theme(s2,x3) & a_bright(s1) & Theme(s1,x3) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_buy(e1) & n_food(x3) & of(x1,x2) & n_people(x2) & n_group(x1))