Two men in orange coveralls shovel snow off railroad tracks.
It snowed heavily on the railroad tracks
Because men had to shovel snow off railroad tracks it implies that it snowed heavily on the railroad tracks.
exists e1 x1 x2 x3 x4 x5 x6.(off(e1,x5) & n_track(x5) & of(x5,x6) & n_railroad(x6) & Theme(e1,x4) & Actor(e1,x1) & v_shovel(e1) & n_snow(x4) & in(x1,x2) & n_coverall(x2) & of(x2,x3) & n_orange(x3) & n_man(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_track(x2) & of(x2,x3) & n_railroad(x3) & n_thing(x1) & a_heavily(s1) & Manner(e1,s1) & on(e1,x2) & Actor(e1,x1) & v_snow(e1))