Answer:
Condition subsequent.
Step-by-step explanation:
This is rampant on agreement that deal with contracts as it is seen to be a situation that terminates a previously valid contract. Closely related legal concepts in cases of this kind are treated as conditions precedent and conditions concurrent. A condition subsequent in certain contracts are known to trigger the termination of the agreement of the said contract and also eliminates rights and obligations in the ends of the two parties. It is seen also in cases that when it occurs, it terminates any duty to perform and can also terminate rights and interests that were present under the terms of the contract.