The legs and lower bodies of people sitting and smoking.
The people are carpooling back home.
Sitting and smoking is different than carpooling.
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_body(x1) & r_more(s1) & a_lower(s1) & Theme(s1,x1) & of(x1,x2) & n_leg(x2) & a_topic(x1) & of(x1,x3) & subset_of(x6,x3) & n_smoking(x6) & subset_of(x4,x3) & Actor(e1,x5) & v_sit(e1) & (x4 = x5) & n_people(x4))
exists e1 s1 x1 x2.(n_people(x1) & a_back(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_carpool(e1) & n_home(x2))