A guy showing his bike to a kid.
A guy is showing off his bike to another to sell.
Just because a guy showing his bike to a kid does not mean he wants to sell it.
exists e1 x1 x2 x3 x4.(a_topic(x1) & to(e1,x4) & n_kid(x4) & Theme(e1,x3) & Actor(e1,x2) & v_show(e1) & n_bike(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_guy(x1))
exists e1 p1 s1 x1 x2 x3 x4.(Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_sell(e2)) & to(e1,x4) & n_thing(x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_show(e1) & n_bike(x3) & of(x3,x1) & n_male(x1) & n_guy(x2) & n_guy(x1))