A man is pedaling a bicycle down the walkway of a lighted tunnel.
A man riding a bicycle.
man is pedaling a bicycle means man riding a bicycle
exists e1 s1 x1 x2 x3 x4.(n_walkway(x3) & down(e1,x3) & of(x3,x4) & n_tunnel(x4) & a_lighted(s1) & Theme(s1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_pedal(e1) & n_bicycle(x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bicycle(x3) & (x1 = x2) & n_man(x1))