A pair of dancers perform on a red brick street.
A pair of dancers tapdancing in public.
A pair of dancers can perform any thing other than tapdancing
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & n_street(x3) & of(x3,x4) & n_brick(x4) & a_red(s1) & Theme(s1,x3) & Actor(e1,x1) & v_perform(e1) & of(x1,x2) & n_dancer(x2) & n_pair(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & in(e1,x4) & n_public(x4) & Actor(e1,x3) & v_tapdance(e1) & (x2 = x3) & n_dancer(x2) & n_pair(x1))