A mailman in his truck whom is in front of a gate.
The mail carrier needs to get out and deliver a package but is worried that dogs may be in the yard.
The mail carrier delivering the package isn't necessarily in a truck sitting in front of a gate.
exists p1 x1 x2 x3.(exists x4 x5.(in(x1,x4) & of(x4,x5) & n_gate(x5) & n_front(x4)) & in(x1,x2) & n_whom(x2) & of(x2,x3) & n_truck(x3) & of(x2,x1) & n_male(x1) & n_mailman(x1))
exists e1 e2 p1 p2 x1 x2 x3 x6.(n_yard(x6) & n_carrier(x1) & of(x1,x3) & n_mail(x3) & of(x1,x2) & n_mail(x2) & Recipient(e2,p2) & Topic(e2,x1) & v_worry(e2) & exists e5 p3 x5.(exists p4.in(x5,x6) & Topic(e5,p3) & Actor(e5,x5) & v_may(e5) & n_dog(x5)) & Topic(e1,p1) & Actor(e1,x1) & v_need(e1) & exists e4 e3 s1 x4.(Theme(e4,x4) & Actor(e4,x1) & v_deliver(e4) & n_package(x4) & a_out(s1) & Manner(e3,s1) & Actor(e3,x1) & v_get(e3)))