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

Example Input: Sentence: 'An oriental musical group gathered in a field'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'OLD BLACK AND WHITE PHOTO OF HORSE AND BUGGY IN BUSY TOWN'. Count the number of nouns in this sentence.
Example Output: 1

Example Input: Sentence: 'a couple holding a knife together as they cut a cake'. Count the number of verbs in this sentence.
Example Output:
2