in Alex family, the Grandparents have two children: your Father (John) and your Aunt (Mary).
Your Father has two children: You (Alex) and your Sibling (Sam).
Your Aunt has two children: Jesse and Taylor (your cousins).
in Alex family, the Grandparents have two children: your Father (John) and your Aunt (Mary).
Your Father has two children: You (Alex) and your Sibling (Sam).
Your Aunt has two children: Jesse and Taylor (your cousins).