It is snowing and there are a lot of people skiing outside.
The snow caused a lot of people to ski.
snowing and there are a lot of people skiing simply means snow caused a lot of people to ski
exists e1 p1 x1 x2.(n_thing(x1) & exists e2 p2 x3 x4 x5.((x2 = x3) & of(x3,x4) & exists s1.(Theme(s1,x5) & a_outside(s1)) & Topic(e2,p2) & Actor(e2,x5) & v_ski(e2) & (x4 = x5) & n_people(x4) & n_lot(x3)) & Actor(e1,x1) & v_snow(e1))
exists e1 p1 x1 x2 x3.(n_snow(x1) & Topic(e1,p1) & Recipient(e1,x2) & Actor(e1,x1) & v_cause(e1) & exists e2.(Actor(e2,x2) & v_ski(e2)) & of(x2,x3) & n_people(x3) & n_lot(x2))