An older man, wearing tan pants and a black jacket, is practicing martial arts along a riverbank.
The older man is a black belt.
An older man, wearing tan pants and a black jacket, is practicing martial arts along a riverbank does not mean that he is a black belt.
exists e2 e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,x6) & Actor(e2,x1) & v_practice(e2) & along(x6,x7) & n_riverbank(x7) & n_art(x6) & a_martial(s4) & Theme(s4,x6) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & subset_of(x5,x3) & n_jacket(x5) & a_black(s3) & Theme(s3,x5) & subset_of(x4,x3) & n_pants(x4) & a_tan(s2) & Theme(s2,x4) & (x1 = x2) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists p1 s1 x1.(n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1) & exists s2 x2.((x1 = x2) & n_belt(x2) & a_black(s2) & Theme(s2,x2)))