Someone in thin-metal armor, riding a horse and carrying a yellow and red shield.
the person is a knight
someone can be wearing thin metal armor, and not be a knight.
exists e2 e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6.(Theme(e2,x6) & Actor(e2,x4) & v_carry(e2) & n_shield(x6) & a_red(s4) & Theme(s4,x6) & a_yellow(s3) & Theme(s3,x6) & in(x4,x5) & n_armor(x5) & a_thin-metal(s2) & Theme(s2,x5) & n_person(x4) & Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_horse(x3) & in(x1,x2) & n_armor(x2) & a_thin-metal(s1) & Theme(s1,x2) & n_person(x1))
exists p1 x1.(n_person(x1) & exists x2.((x1 = x2) & n_knight(x2)))