A skinny guy is eating a sandwich while using the computer.
The man is very fat
One is either considered fat or skinny, not both at once.
exists e1 e2 s1 x1 x2 x3.(n_computer(x3) & while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_use(e2) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_sandwich(x2) & n_guy(x1) & a_skinny(s1) & Theme(s1,x1))
exists s1 x1.(n_man(x1) & r_very(s1) & Theme(s1,x1) & a_fat(s1))