Workers dig deeply into a rock and stone hole with tools placed on the ground before them.
Miners are digging
Workers who dig aren't necessarily miners.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_thing(x8) & n_ground(x8) & with(e1,x6) & before(e2,x8) & on(e2,x8) & Theme(e2,x7) & v_place(e2) & (x6 = x7) & n_tool(x6) & a_deeply(s1) & Manner(e1,s1) & into(e1,x2) & n_hole(x4) & of(x4,x5) & n_stone(x5) & n_rock(x3) & subset_of(x4,x2) & subset_of(x3,x2) & Actor(e1,x1) & v_dig(e1) & n_worker(x1))
exists e1 x1.(Actor(e1,x1) & v_dig(e1) & n_miner(x1))