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

Example Input: Sentence: 'Street signs with a cartoon policeman in Shanghai'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'There's a toilet in a bathroom with a mirror behind it'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'A train on a track in the middle of a neighborhood'. Count the number of verbs in this sentence.
Example Output:
0