A man in a striped shirt writes with chalk on a blackboard.
There is a man writing on a blackboard.
Writing on a blackboard implies he writes with chalk.
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_blackboard(x4) & with(e1,x3) & n_chalk(x3) & Actor(e1,x1) & v_write(e1) & in(x1,x2) & n_shirt(x2) & a_striped(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & on(e1,x4) & n_blackboard(x4) & Actor(e1,x3) & v_write(e1) & (x2 = x3) & n_man(x2))