premise: A man operates a piece of earth-moving equipment near a waterway.
hypothesis: The man is working outside
explanation_1: A man operates equipment outside.
explanation_2: "A man working"is a rephrasing of "a man operates", and the waterway is seen outdoors, so the man is outside.
explanation_3: A man is doing something with an equipment
premise_logic: exists e1 s1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & near(x2,x4) & n_waterway(x4) & of(x2,x3) & n_equipment(x3) & a_earth-moving(s1) & Theme(s1,x3) & n_piece(x2) & n_man(x1))
hypothesis_logic: exists e1 s1 x1.(n_man(x1) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1))