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

Example Input: Sentence: 'Ironic picture of man and woman walking up a sidewalk under a "Wrong Way" sign'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A person is walking with their dog in a backpack in the park'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'there are many elephants walking together in the wild'. Count the number of nouns in this sentence.
Example Output:
2