Indian shop vendor working during the day.
A shop owner is helping a customer.
Just because the Indian shop vendor is working during the day doesn't mean that the shop vendor is helping a customer.  Working encompasses more than just helping customers.
exists e1 s1 x1 x2 x3 x4.(n_day(x4) & a_topic(x1) & during(e1,x4) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & n_vendor(x1) & of(x1,x2) & n_shop(x2) & a_indian(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_help(e1) & n_customer(x3) & n_owner(x1) & of(x1,x2) & n_shop(x2))