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

Example Input: Sentence: 'A picture of a cat looking at its reflection in the water'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A dog is sitting on a couch with it's head turned to look out of the window'. Count the number of verbs in this sentence.
Example Output: 4

Example Input: Sentence: 'Several guys playing the Wii and holding the controllers'. Count the number of verbs in this sentence.
Example Output:
2