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

Input: Consider Input: Sentence: 'Two young people on ski mountain looking unenthused about the sport'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'Two people holding tennis rackets on a tennis court'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'A man is lifting the seat to a toilet'. Count the number of verbs in this sentence.


Output: 1