2. Brian who is still at school (defining)
3.  London which is a capital of England ( defining)
4. The men, whose wife is seriously ill, (non-defining)
5. This parrot which comes from Africa (defining)
6. The children who play with my son (defining)
7. Brighton where my cousin lives (defining)
8. English weather which is always bad (defining)
9. The woman, whose car was stolen, (non-defining)
10. Kate's job which involves working long hours (defining)
11. George who is American (defining)
12. The soldier who fought (defining)
13. The house where me grandparents (defining)
14 ...which... (defining)