Several people work at circular fabric dye pools.
Workers prepare the vats for the next batch of cotton.
Sentence two may be talking about different roller workers.
exists e1 s1 s2 x1 x2 x3 x4.(at(e1,x2) & n_pool(x2) & of(x2,x4) & n_dye(x4) & of(x2,x3) & n_fabric(x3) & a_circular(s2) & Theme(s2,x2) & Actor(e1,x1) & v_work(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4.(n_batch(x3) & a_next(s1) & Theme(s1,x3) & n_vat(x2) & for(e1,x3) & of(x3,x4) & n_cotton(x4) & Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1) & n_worker(x1))