People are sitting at every table in a cafe.
The caf is very crowded, as a famous pianist is going to play today.
The cafe is not necessarily very crowded, even though there are people sitting at every table. There isn't necessarily any famous pianist who is going to play today.
exists e1 x1.(all x2.(n_table(x2) -> exists x3.(in(e1,x3) & n_cafe(x3) & at(e1,x2))) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists p1 s1 x1.(n_caf(x1) & exists e1 p2 s2 x2.(Topic(e1,p2) & Actor(e1,x2) & v_go(e1) & exists e2 x3.(Time(e2,x3) & n_today(x3) & Actor(e2,x2) & v_play(e2)) & n_pianist(x2) & a_famous(s2) & Theme(s2,x2)) & as(s1,p1) & r_very(s1) & Theme(s1,x1) & a_crowded(s1))