Neil Armstron is the astronaut...
A dictionary is a book...
A hospital is a place...
Carnivores are animals...
They went to the restaurant...
California is a state in America...
Stefani Germanotta is a singer...
A surgeon is a doctor...
...who was the first to walk on the Moon.
...where they had met by chance.
...which gives you the meaning of the words.
...which only eat meat.
...where sick people become healthy again.
...whose stage name is "Lady Gaga".
...whose governor was the famous actor Arnold Schwarzenegger.
...who performs operations.