Given below is a statement of legal principle followed by factual situation. Apply the principle to the facts and select the most appropriate answer.
PRINCIPLE: An Agreement, the meaning of which is not certain, or capable of being made certain, is void.
FACTS: A and B, who were brothers, entered into an agreement which stated that A would sell his entire share of the ancestral property to B. The agreement did not mention the specific details (like survey number) of the property.
DECIDE