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

Input: Consider Input: Sentence: 'A person doing tricks on a skateboard about to fall'. Count the number of nouns in this sentence.

Output: 3


Input: Consider Input: Sentence: 'An old white building has a sign that says F Street'. Count the number of nouns in this sentence.

Output: 2


Input: Consider Input: Sentence: 'The interior of a living room is shown in modern style'. Count the number of nouns in this sentence.


Output: 4