A man in a pink and green shirt and a woman in a white shirt sign books at a table.
A man and woman go out on a date.
The people can't be on a date while they sign books.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(at(e1,x7) & n_table(x7) & Theme(e1,x6) & Actor(e1,x1) & v_sign(e1) & n_book(x6) & in(x1,x2) & subset_of(x4,x2) & in(x4,x5) & n_shirt(x5) & a_white(s3) & Theme(s3,x5) & n_woman(x4) & subset_of(x3,x2) & n_shirt(x3) & a_green(s2) & Theme(s2,x3) & a_pink(s1) & Theme(s1,x3) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_date(x4) & a_out(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))