In this task, you need to count the number of nouns/verbs in the given sentence.

Example Input: Sentence: 'A bid walking on a stream of water next to green plants'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'Two cows that are standing in the grass'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'A cool beverage sits on a table at a seaside restaurant'. Count the number of verbs in this sentence.
Example Output:
1