A person in gray shirt is learning about the Wii system.
There is a video game console.
Wii system is a video game console
exists e1 s1 x1 x2 x3 x4.(n_system(x3) & (x3 = x4) & ne_org_wii(x4) & about(e1,x3) & Actor(e1,x1) & v_learn(e1) & in(x1,x2) & n_shirt(x2) & a_gray(s1) & Theme(s1,x2) & n_person(x1))
exists p1 x1 x2 x3 x4.((x1 = x2) & n_console(x2) & of(x2,x4) & n_game(x4) & of(x2,x3) & n_video(x3))