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

Input: Consider Input: Sentence: 'A photo take though glass of a polar pear diving under water'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'An open Swiss army knife with multiple attachments'. Count the number of verbs in this sentence.

Output: 0


Input: Consider Input: Sentence: 'a yellow train pulling up to station at night'. Count the number of verbs in this sentence.


Output: 2