Are the underlined words collective, abstract, concrete, or proper nouns?

1. "To enjoy freedom freedom is a collective noun freedom is a proper noun freedom is an abstract noun freedom is a concrete noun we have to control ourselves." — Virginia Woolf.
2. "Water water is a collective noun water is a proper noun water is an abstract noun water is a concrete noun is the driving force of all nature." — Leonardo da Vinci.
3. "Always make the audience audience is a collective noun audience is a proper noun audience is an abstract noun audience is a concrete noun suffer as much as possible." ― Alfred Hitchcock .
   
4. "Being deeply loved by someone gives you strength, while loving someone deeply gives you courage courage is a collective noun courage is a proper noun courage is an abstract noun courage is a concrete noun ." ― Lao Tzu
5. "The drops of rain make a hole in the stone stone is a ollective noun stone is a proper noun stone is an abstract noun stone is a concrete noun , not by violence, but by oft falling." ― Lucretius
6. Churchill Churchill is a collective noun Churchill is a proper noun Churchill is an abstract noun Churchill is a concrete noun is best remembered for successfully leading Britain through World War Two.
7. When birds fly together they form beautiful flocks flock is a collective noun flock is a proper noun flock is an abstract noun flock is a aconcrete noun .
8. I am traveling to London London is a collective noun London is a proper noun London is an abstract noun London is a concrete noun for the first time.
9. "It is not a lack of love, but a lack of friendship friendship is a collective noun friendship is a proper noun friendship is an abstract noun friendship is a concrete noun that makes unhappy marriages." ― Friedrich Nietzsche .
10. "The responsibility of tolerance tolerance is a collective noun tolerance is a proper noun tolerance is an abstract noun tolerance is a concrete noun lies with those who have the wider vision." ― George Eliot