context: Grading and pricing fish in an open air fish market.
hypothesis: It is probably not the case that a fresh catch right off the boat has been delivered for sale to the market.
valid_hypothesis: It is probably not the case that a fresh catch right off the boat has been delivered for sale to the market.
invalid_hypothesis: There is a very good chance that a fresh catch right off the boat has been delivered for sale to the market.
hypothesis_assertion: A fresh catch right off the boat has been delivered for sale to the market.