Many people wait to eat dinner as the man at the head of the table says grace.
People are waiting to eat while the head of the table is about to say grace outside
About to say grace means that he hasn't started to say grace yet and there is no way of knowing if the head is outside.
exists e1 p1 x1 x3 x4 x5.(n_table(x5) & n_head(x4) & n_man(x3) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 p2 x2.(exists e3 x6.(Time(e3,x6) & n_grace(x6) & Actor(e3,x3) & v_say(e3) & at(x3,x4) & of(x4,x5)) & as(e2,p2) & Theme(e2,x2) & Actor(e2,x1) & v_eat(e2) & n_dinner(x2)) & n_people(x1) & n_quantity(x1))
exists e1 p1 x1 x2 x3.(n_table(x3) & n_head(x2) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 p2.(exists p3 s1.(Topic(s1,p3) & Actor(s1,x2) & a_about(s1) & exists e3 s2 x4.(a_outside(s2) & Manner(e3,s2) & Theme(e3,x4) & Actor(e3,x2) & v_say(e3) & n_grace(x4)) & of(x2,x3)) & while(e2,p2) & Actor(e2,x1) & v_eat(e2)) & n_people(x1))