A checkout women is working at her job.
A woman is working hard at her second job.
Working a job does not imply that the job is hard, nor that it is a second job.
exists e1 x1 x2 x3.(at(e1,x3) & n_job(x3) & of(x3,x1) & n_female(x1) & Actor(e1,x1) & v_work(e1) & n_woman(x1) & of(x1,x2) & n_checkout(x2))
exists e1 s1 s2 x1 x2.(at(e1,x2) & n_job(x2) & a_second(s2) & Theme(s2,x2) & of(x2,x1) & n_female(x1) & a_hard(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1) & n_woman(x1))