A man sits in a wheelchair on a sidewalk with a portable oxygen tank at his side.
A man in a wheelchair is out on the sidewalk.
A man who sits in a wheelchair must also be in a wheelchair.
exists e1 s1 x1 x2 x3 x4 x5 x6.(at(e1,x6) & n_side(x6) & of(x6,x1) & n_male(x1) & with(e1,x4) & n_tank(x4) & of(x4,x5) & n_oxygen(x5) & a_portable(s1) & Theme(s1,x4) & on(e1,x3) & n_sidewalk(x3) & in(e1,x2) & n_wheelchair(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists p1 s1 x1 x2 x3.(n_sidewalk(x3) & a_out(s1) & Manner(p1,s1) & on(x1,x3) & in(x1,x2) & n_wheelchair(x2) & n_man(x1))