Children of all ages and their families congregate in the library.
Children and their families crowd inside a library
To crowd into a space is to congregate inside it.
exists e1 x1 x2 x3 x4.(n_library(x4) & in(e1,x4) & Actor(e1,x1) & v_congregate(e1) & of(x1,x2) & subset_of(x3,x2) & n_family(x3) & of(x3,x1) & n_thing(x1) & all x5.(n_age(x5) -> subset_of(x5,x2)) & n_child(x1))
exists e1 x1 x2 x3 x4 x5.(inside(e1,x5) & n_library(x5) & Theme(e1,x4) & Actor(e1,x1) & v_crowd(e1) & n_thing(x4) & subset_of(x3,x1) & n_family(x3) & of(x3,x2) & n_thing(x2) & subset_of(x2,x1) & n_child(x2))