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

Input: Consider Input: Sentence: 'An airplane in the air on an open field'. Count the number of nouns in this sentence.

Output: 3


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: 'The skateboarder in jeans and t-shirt stands on the pavement next to the skateboard'. Count the number of nouns in this sentence.


Output: 6