A bicyclist waiting for traffic to pass so he can cross the street.
A bicyclist waits for cars to pass.
Sentence 2 is a rephrasing of of sentence 1 where a bicyclist is waiting or waits for cars to pass; cars in the street can also be called traffic.
exists e1 p1 x1 x2 x4.(n_street(x4) & a_topic(x1) & Topic(e1,p1) & Actor(e1,x2) & v_wait(e1) & exists e2 p2 x3.(exists e3 p3.(exists e4.(Theme(e4,x4) & Actor(e4,x1) & v_cross(e4)) & Topic(e3,p3) & Actor(e3,x1) & v_can(e3)) & so(e2,p2) & Actor(e2,x3) & v_pass(e2) & n_traffic(x3)) & n_male(x1) & (x1 = x2) & n_bicyclist(x1))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 x2.(Actor(e2,x2) & v_pass(e2) & n_car(x2)) & n_bicyclist(x1))