A couple sit on a ledge by the water, the woman leaning forward, the man looks out towards the water.
The couple are elderly.
A couple sit on a ledge by the water, the woman leaning forward, the man looks out towards the water does not imply they are elderly.
exists e1 e3 e2 s1 s2 x1 x2 x3 x4 x5 x6.(n_water(x3) & n_water(x3) & n_man(x6) & n_woman(x4) & a_out(s2) & Manner(e3,s2) & towards(e3,x3) & Actor(e3,x6) & v_look(e3) & by(e1,x3) & rel(x3,x4) & a_forward(s1) & Manner(e2,s1) & Actor(e2,x5) & v_lean(e2) & (x4 = x5) & on(e1,x2) & n_ledge(x2) & Actor(e1,x1) & v_sit(e1) & n_couple(x1))
exists s1 x1.(n_couple(x1) & Theme(s1,x1) & a_elderly(s1))