A man juggling while riding a unicycle in front of a crowd of people.
A clown is doing his act while riding a bike with one wheel.
it can't be known from the first sentence that the man is a clown he could simply be a performer
exists e2 e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & while(e1,e2) & in(e2,x4) & of(x4,x5) & of(x5,x6) & n_people(x6) & n_crowd(x5) & n_front(x4) & Theme(e2,x3) & Actor(e2,x2) & v_ride(e2) & n_unicycle(x3) & Actor(e1,x2) & v_juggle(e1) & (x1 = x2) & n_man(x1))
exists e2 e1 x1 x2 x3 x4.(while(e1,e2) & with(e2,x4) & n_wheel(x4) & card_eq_1(x4) & Theme(e2,x3) & Actor(e2,x1) & v_ride(e2) & n_bike(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_act(x2) & of(x2,x1) & n_male(x1) & n_clown(x1))