Four runners, in colorful gear, sprinting down the street.
The boy runs uphill.
One cannot run down the street and uphill simultaneously.
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & down(e1,x4) & Actor(e1,x1) & v_sprint(e1) & in(x1,x3) & n_gear(x3) & a_colorful(s1) & Theme(s1,x3) & n_runner(x1) & (x1 = x2) & ne_nam_four(x2))
exists e1 p1 x1.(n_boy(x1) & exists s1.(Theme(s1,x1) & a_uphill(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_run(e1))