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

Ex Input:
Sentence: 'A family walking towards a very small airplane'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A lunchbox with vegetables, fruit, a sandwich and a cup of tea'. Count the number of verbs in this sentence.

Ex Output:
0


Ex Input:
Sentence: 'A man sitting at a wooden desk using a laptop computer'. Count the number of verbs in this sentence.

Ex Output:

2