Direction: Read the following information carefully and answer the given questions.

Four different families are going to a family function. In each family, only one grandmother, one granddaughter, and one grandson are going to the family function. The grandmothers are A, C, F, and K; the granddaughters are O, R, Q, and I; and the grandsons are U, X, S, and J. K is the grandmother of O and J. U is the brother of R. Each family has a maximum of one person with a vowel in their name, and each family has only one person whose name's place value is a prime number.