Students

Three students doing a psychiatry lesson the first student was asked "What's the opposite of joy?"
She said "Sorrow"
The second student was asked "What's the opposite of depression?"
He said "Happiness"
Then Paddy was asked "What's the opposite of Woe?"
He replied
She said "Sorrow"
The second student was asked "What's the opposite of depression?"
He said "Happiness"
Then Paddy was asked "What's the opposite of Woe?"
He replied
Spoiler: