The book which is on the table is mine.→ The bookthe table is mine.
John, who had taken his medicine, laid down and slept.→ John,taken his medicine, laid down and slept.
The people that exercised every day lost the most weight.→ The peopleevery day lost the most weight.
The egg, which smelled foul, couldn't be eaten.→The foulegg couldn't be eaten.