Original: In someone 's family , if his or her grandparents are the first generation , then the parents , aunts , and uncles are another , and that person , with his or her brothers , sisters , and cousins , are a third .
Simplified: In a person 's family , their grandparents are one generation , their parents , aunts , and uncles are another , and that person , their brothers , sisters , and cousins , are a third .