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

Example Input: Sentence: 'an older person holding an open umbrella'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'A room with wooden slatted walls adorns two shower knobs, a trash can, a soap dish with soap and a sink'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A train is sitting on the train station'. Count the number of verbs in this sentence.
Example Output:
1