Weekend Challenge 1/14 (Solution)

Apologies for the delay! Here is the solution to last week's Weekend Challenge:

There are seven guests at the picnic: Tim, his grandfather and grandmother, his father and mother, and his two sisters. Each of the family members fills multiple roles. Tim is a child, a grandchild, a brother, and a son. His grandpa is a grandfather, a father, and a father-in-law. His grandma is a grandmother, a mother, and a mother-in-law. His dad is a father, a child, and a son. His mom is a mother and a daughter-in-law. His sisters are sisters and daughters.

Were you or your students/children able to solve this challenge?