A man talks to a bus driver in Ho Chi Minh City, Vietnam.
A man is in Vietnam
Ho Chi Minh City, Vietnam  is the same as vietnam
exists x1 x2 x3 x4 x5 x6 x7 x8 x9.(ne_geo_vietnam(x9) & ne_geo_city(x5) & (x5 = x8) & ne_geo_minh(x8) & (x5 = x7) & ne_geo_chi(x7) & (x5 = x6) & ne_geo_ho(x6) & a_topic(x1) & to(x1,x3) & in(x3,x5) & rel(x5,x9) & n_driver(x3) & of(x3,x4) & n_bus(x4) & n_talk(x1) & of(x1,x2) & n_man(x2))
exists p1 x1 x2.(ne_geo_vietnam(x2) & in(x1,x2) & n_man(x1))