A uniformed man in the Army is training a German Shepherd using an arm guard.
A man is interacting with an animal.
A German Shepherd is an animal. In order to train, someone must be interacting with the trainee.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(ne_org_army(x2) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_use(e2) & n_guard(x4) & of(x4,x5) & n_arm(x5) & Theme(e1,x3) & Actor(e1,x1) & v_train(e1) & ne_org_shepherd(x3) & a_german(s2) & Theme(s2,x3) & in(x1,x2) & n_man(x1) & a_uniformed(s1) & Theme(s1,x1))
exists e1 x1 x2.(with(e1,x2) & n_animal(x2) & Actor(e1,x1) & v_interact(e1) & n_man(x1))