Read the following sentences and circle the Non-defining Relative Clauses and put a comma / a hyphen wherever necessary.
1. The meeting which was held in the town hall was a great success.
2. The people who live in glass houses must not throw stones.
3. Teachers who have taught Abhiram say that he is an exceptionally creative student.
4. Nepolean who won the French honour died at St. Helena.
5. Silk sarees which are made in Banares are popular all over the world.