A family of three watching construction going on in their yard.
There are three people
There are three because they are a family of three.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_watch(e2) & in(e1,x6) & n_yard(x6) & of(x6,x1) & n_thing(x1) & a_on(s1) & Manner(e1,s1) & Actor(e1,x5) & v_go(e1) & (x4 = x5) & n_construction(x4) & (x2 = x3) & n_thing(x2) & card_eq_3(x2) & n_family(x1))
exists p1 x1 x2.((x1 = x2) & n_people(x2) & card_eq_3(x2))