Physically challenged person sitting on his wheelchair in a park.
An Iraq War veteran who lost his legs sitting on his wheelchair in a park.
Not everyone in a wheelchair lost his legs and also does not imply the are an Iraq War veteran.
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & in(e2,x4) & n_park(x4) & on(e2,x3) & n_wheelchair(x3) & of(x3,x1) & n_male(x1) & Actor(e2,x2) & v_sit(e2) & (x1 = x2) & n_person(x1) & Theme(e1,x1) & v_challenge(e1) & r_physically(x1))
exists e2 e1 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & Theme(e2,x5) & Actor(e2,x4) & v_lose(e2) & in(e1,x8) & n_park(x8) & on(e1,x7) & n_wheelchair(x7) & of(x7,x1) & n_male(x1) & n_male(x1) & Actor(e1,x6) & v_sit(e1) & (x5 = x6) & n_leg(x5) & of(x5,x1) & (x1 = x4) & n_veteran(x1) & (x1 = x3) & ne_nam_war(x3) & (x1 = x2) & ne_geo_iraq(x2))