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

Input: Consider Input: Sentence: 'A walking sign glows underneath two street signs'. Count the number of verbs in this sentence.

Output: 2


Input: Consider Input: Sentence: 'A boat flies its flag while sailing just off a pier'. Count the number of verbs in this sentence.

Output: 2


Input: Consider Input: Sentence: 'An elephant is by itself standing for the picture'. Count the number of verbs in this sentence.


Output: 1