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

Ex Input:
Sentence: 'five bags of luggage sitting on to of a floor'. Count the occurrences of the word 'to' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'an adult skier holds the hand of a child skier in the snow'. Count the occurrences of the word 'skier' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'an animal is eating from his bowl and has milk covering his face'. Count the occurrences of the word 'his' in the given sentence.

Ex Output:

2