A boy descends off the end of a high diving board.
A kid jumps off of a high platform.
Descends is another way of saying jump. A high diving board is a high platforms. They are synonyms.
exists e1 s1 x1 x2 x3 x4.(n_end(x2) & off(e1,x2) & of(x2,x3) & n_board(x3) & of(x3,x4) & n_diving(x4) & a_high(s1) & Theme(s1,x3) & Actor(e1,x1) & v_descend(e1) & n_boy(x1))
exists e1 s1 x1 x2.(r_off(e1) & of(e1,x2) & n_platform(x2) & a_high(s1) & Theme(s1,x2) & Actor(e1,x1) & v_jump(e1) & n_kid(x1))