a man is working on constructing a shelter made of logs and reeds.
The man is crafting a cabin.
Not all shelter made of logs and reeds is a cabin. It could be a boat.
exists e1 e3 e2 x1 x2 x3 x4 x5 x6 x7.(on(e1,e3) & Theme(e3,x3) & Actor(e3,x2) & v_construct(e3) & of(e2,x5) & subset_of(x7,x5) & n_reed(x7) & subset_of(x6,x5) & n_log(x6) & Theme(e2,x4) & v_make(e2) & (x3 = x4) & n_shelter(x3) & Actor(e1,x1) & v_work(e1) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_craft(e1) & n_cabin(x2))