A man sits on the sidewalk while repairing a bike.
A man sitting on the sidewalk repairing the handlebars of his bike after they bent.
Repairing a bike does not necessarily mean repairing the handlebars.
exists e1 e2 x1 x2 x3.(n_sidewalk(x2) & while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_repair(e2) & n_bike(x3) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 e2 p1 x1 x2 x3 x4 x5.(n_thing(x3) & n_bike(x5) & of(x5,x3) & n_male(x3) & n_handlebars(x4) & n_sidewalk(x3) & a_topic(x1) & for(e1,e2) & exists e3.(Actor(e3,x3) & v_bend(e3)) & after(e2,p1) & Theme(e2,x4) & Actor(e2,x2) & v_repair(e2) & of(x4,x5) & on(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))