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

Example Input: Sentence: 'Woman cross country skiing alone on a trail in the woods'. Count the number of nouns in this sentence.
Example Output: 5

Example Input: Sentence: 'A picture of some people and some animals'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'People walking down a sidewalk with some umbrellas'. Count the number of verbs in this sentence.
Example Output:
1