A young man carries flags outside a building
The girl is running laps.
One cannot carry flags and be running laps simultaneously. A young man cannot be a girl.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & outside(x2,x3) & n_building(x3) & n_flag(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_lap(x2))