The man in the black leather jacket is jousting from his bicycle.
The man in the black leather jacket is riding his bicyle while jousting.
riding his bicycle while jousting is the same as jousting from his bicycle.
exists e1 s1 x1 x2 x3 x4.(n_bicycle(x4) & of(x4,x1) & n_male(x1) & n_jacket(x2) & of(x2,x3) & n_leather(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1) & from(e1,x4) & Actor(e1,x1) & v_joust(e1) & in(x1,x2))
exists e2 e1 s1 x1 x2 x3 x4.(n_bicyle(x4) & of(x4,x1) & n_male(x1) & n_jacket(x2) & of(x2,x3) & n_leather(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1) & while(e1,e2) & Actor(e2,x1) & v_joust(e2) & Theme(e1,x4) & Actor(e1,x1) & v_ride(e1) & in(x1,x2))