Large light fixture in busy operating room.
Large gas lamp is in a busy factory room.
It cannot be inferred from sentence 1 that the lamp is a gas lamp.
exists s1 s2 s3 x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_room(x2) & of(x2,x3) & n_operating(x3) & a_busy(s3) & Theme(s3,x2) & n_fixture(x1) & a_light(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1))
exists p1 s1 x1 x2.(exists s2 x3 x4.(in(x1,x3) & n_room(x3) & of(x3,x4) & n_factory(x4) & a_busy(s2) & Theme(s2,x3)) & n_lamp(x1) & of(x1,x2) & n_gas(x2) & a_large(s1) & Theme(s1,x1))