Ответ:

1 John and Natasha are Simon’s grandparents.

2 Susan is Ian’s wife.

3 James is Simon’s cousin.

4 Natasha is Luke’s mother.

5 Luke is Ian’s son.

6 Daniel is Simon’s uncle.

7 Sophie is Ian’s daughter.

8 James is Daniel’s son.

9 Sophie is John’s granddaughter.

10 Luke is Sandra’s partner.