Kiddushin 49 - Betrothal with a Wrong Object
If a man says to a woman: "Become betrothed to me with this cup of wine," and the cup was found to contain honey, or the other way around - she is not betrothed. Some people prefer wine, and some prefer honey.
Or, if a man asks a woman to become betrothed with a silver coin, and it was found to be made of gold, or the other way around - she is not betrothed. In some situations, she may need silver and in some gold. Rabbi Shimon says that if he promised a silver coin but gave a golden one, she is betrothed, since he only mentioned silver " by way of example ."
Ten measures of conversation descended to the world, and women took nine of them.