People are playing foosball.
There are people competing in a sport
Foosball is a sport.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_foosball(x2) & n_people(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & in(e1,x4) & n_sport(x4) & Actor(e1,x3) & v_compete(e1) & (x2 = x3) & n_people(x2))