Sharon contracted with Jane, a shirtmaker, for one thousand shirts for men. Jane manufactured and delivered five hundred shirts, for which Sharon paid. At the same time, Sharon notified Jane that she could not use or dispose of the other five hundred shirts and directed Jane not to manufacture any more under the contract. Nevertheless, Jane made up the other five hundred shirts and tendered them to Sharon. Sharon refused to accept the shirts. Jane then sued for the purchase price. Is she entitled to the purchase price? If not, is she entitled to any damages? Explain.