A retail professional pauses while interacting with customers.
A customer is trying to purchase an item.
We don't know that the customer is trying to purchase.
(-x)
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_purchase(e2) & n_item(x2)) & n_customer(x1))