In this task, you need to count the occurrences of the given word in the given sentence.

Ex Input:
Sentence: 'two females sitting outside with two dogs near a clock on a pole'. Count the occurrences of the word 'two' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a lamb front diagonal view laying in a shady area of sunny grass with front half of a sheep looking at camera on right side of photo'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a woman making a weird face with curly hair standing next to others'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

2