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

Example Input: Sentence: 'The street is barred for a train to pass'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'Two men are cutting into a cake with icing'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'A row of bikes parked neatly on a street'. Count the number of verbs in this sentence.
Example Output:
1