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

Example Input: Sentence: 'Adults with a baby and two cakes on a table'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'A man with his tennis racket below his waist as the ball moves away from him'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A duckling swims in a pond and catches some food'. Count the number of verbs in this sentence.
Example Output:
2