A man in a gray shirt and shorts sits in a walkway as two individuals pass him by.
A man sits in a walkway while people pass him by.
In both cases a man sits in a walkway, and individuals by definition are people.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(as(e1,x6) & a_by(s2) & Manner(e2,s2) & Theme(e2,x1) & Actor(e2,x7) & v_pass(e2) & n_male(x1) & (x6 = x7) & n_individual(x6) & card_eq_2(x6) & in(e1,x5) & n_walkway(x5) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & subset_of(x4,x2) & n_shorts(x4) & subset_of(x3,x2) & n_shirt(x3) & a_gray(s1) & Theme(s1,x3) & n_man(x1))
exists e1 p1 x1 x2.(exists e2 s1 x3.(a_by(s1) & Manner(e2,s1) & Theme(e2,x1) & Actor(e2,x3) & v_pass(e2) & n_people(x3)) & n_male(x1) & while(e1,p1) & in(e1,x2) & n_walkway(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))