premise: The streets are busy and people contemplate their futures.
hypothesis: People are thinking about futures.
explanation_1: Both sentences describe people doing something with their futures. Contemplate and think are synonyms.
explanation_2: People who contemplate their futures are thinking about futures.
explanation_3: People contemplate is a paraphrase of people thinking.
premise_logic: exists e1 s1 x1 x2 x3.(n_future(x3) & of(x3,x1) & n_thing(x1) & n_street(x1) & Theme(e1,x3) & Actor(e1,x2) & v_contemplate(e1) & n_people(x2) & Theme(s1,x1) & a_busy(s1))
hypothesis_logic: exists e1 x1 x2.(about(e1,x2) & n_future(x2) & Actor(e1,x1) & v_think(e1) & n_people(x1))