A man shoveling snow off the sidewalk in the city.
There is a man riding a bike.
one cannot be riding a bike if he or she is out shoveling snow.
exists e1 x1 x2 x3 x4 x5.(n_city(x5) & n_sidewalk(x4) & a_topic(x1) & off(e1,x4) & in(x4,x5) & Theme(e1,x3) & Actor(e1,x2) & v_shovel(e1) & n_snow(x3) & (x1 = x2) & n_man(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & n_bike(x4) & (x2 = x3) & n_man(x2))