A stoplight is yellow next to a pedestrian crossing sign.
A stoplight is blinking next to a pedestrian crossing sign.
A stoplight is yellow but that doesn't necessarily mean that the stoplight is blinking.
exists e1 s1 x1 x2 x3.(to(s1,x2) & n_sign(x2) & Actor(e1,x2) & v_cross(e1) & of(x2,x3) & n_pedestrian(x3) & r_next(s1) & Theme(s1,x1) & a_yellow(s1) & n_stoplight(x1))
exists e1 e2 x1 x2 x3.(to(e1,x2) & n_sign(x2) & Actor(e2,x2) & v_cross(e2) & of(x2,x3) & n_pedestrian(x3) & r_next(e1) & Actor(e1,x1) & v_blink(e1) & n_stoplight(x1))