Two people are seated on a camel while another camel is in the foreground.
Two people traveling in the desert on camel back.
the fact that the people are on a camel does not imply that they are traveling in the desert.
exists e1 p1 x1 x2 x4.(n_foreground(x4) & exists p2 x3.(in(x3,x4) & n_camel(x3) & -(x3 = x2)) & n_camel(x2) & n_camel(x2) & while(e1,p1) & on(e1,x2) & Theme(e1,x1) & v_seat(e1) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4.(n_desert(x3) & a_topic(x1) & a_back(s1) & Manner(e1,s1) & on(e1,x4) & n_camel(x4) & in(e1,x3) & Actor(e1,x2) & v_travel(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))