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

Sentence: 'five bags of luggage sitting on to of a floor'. Count the occurrences of the word 'to' in the given sentence.
1

Sentence: 'a young boy in a green baseball uniform holding a baseball bat'. Count the occurrences of the word 'baseball' in the given sentence.
2

Sentence: 'a passenger train goes along some train tracks in front of a highway'. Count the occurrences of the word 'a' in the given sentence.

2