instruction:
In this task, you need to count the number of nouns/verbs in the given sentence.
question:
Sentence: 'some street signs sitting by a tree'. Count the number of nouns in this sentence.
answer:
3


question:
Sentence: 'A man riding on the back of an elephant near a lake'. Count the number of nouns in this sentence.
answer:
4


question:
Sentence: 'A young man playing tennis prepares to serve the ball'. Count the number of verbs in this sentence.
answer:

3