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Grandma: What are you doing, John?

John: I am making a birthday chart(表格) or our family. When is your birthday?

Grandma: It's in May.

John: My mother's birthday is in May, too. When is Grandpa's birthday?

Grandma: It's on June 18^th.

John: There are three birthdays in June. My birthday is in June. Uncle Bill's birthday is in June, too. When is Aunt Mary's birthday?

Grandma: Her birthday is on November 15th. Cousin Alice's birthday is on April 6^th.

John: Great! Here's the chart.