A dark-haired male wears a gas-mask while spray painting a canvas by a big stone wall.
The mane was showing his artistic skills
You cant infer that the man was being artistic
exists e1 s1 x1 x2.(all x3.(n_canvas(x3) -> exists s2 s3 x4 x5 x6.(by(e1,x5) & n_wall(x5) & of(x5,x6) & n_stone(x6) & a_big(s3) & Theme(s3,x5) & while(e1,x4) & for(x4,x3) & n_painting(x4) & a_spray(s2) & Theme(s2,x4))) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_gas-mask(x2) & n_male(x1) & a_dark-haired(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_skill(x2) & a_artistic(s1) & Theme(s1,x2) & of(x2,x1) & n_male(x1) & n_mane(x1) & Theme(e1,x2) & Actor(e1,x1) & v_show(e1))