Online college course - Relative pronouns -

'Who' and 'which'

'Who'
Ex. The man who lives here is a scientist.

'Which'
Ex. The car which is parked outside is new .

'Whom'
Ex. The woman to whom you were speaking is a doctor.

'Whose', 'where', et 'what'

'Whose'
Ex. The man whose car is parked outside our house is a doctor....)

'Where'
Ex. The town where they stopped was by the sea.

'What'
Ex. I believe what you said..
Ex. What you said is right.