5. Rinn v. Parent Seeds Ltd. (2001), 156 Man. R. (2d) 191 (C.A.). Rinn had a contract to supply a quantity of black and white beans to Parent Seeds Ltd. Unfortunately, Rinn's crop was damaged by frost and he couldn't deliver the beans from his farm. He then made arrangements to obtain the beans from another source and Parent accepted the alternative white beans supplied, not knowing Rinn didn't grow them. Parent refused to take delivery of the black beans, claiming that the contract had been frustrated. Explain the arguments that could be advanced by both parties. How would it affect your answer to learn that the contract required the delivery of specific black beans grown by Rinn with seed supplied by Parent?