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

Ex Input:
Sentence: 'A crowd of people standing around a food truck'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A street with cars driving down and a traffic signal ahead'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Black and white photo of older train on tracks'. Count the number of verbs in this sentence.

Ex Output:

0