A colored couple rides bicycles with white wall tires along a city street.
A couple is swimming.
Someone who rides bicycles cannot simultaneously be swimming.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(with(e1,x3) & along(x3,x5) & n_street(x5) & of(x5,x6) & n_city(x6) & n_tire(x3) & of(x3,x4) & n_wall(x4) & a_white(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & n_couple(x1) & a_colored(s1) & Theme(s1,x1))
exists p1 x1.(exists x2.((x1 = x2) & n_swimming(x2)) & n_couple(x1))