In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.
--------
Question: Sentence: 'four boats on the sand on the beach'. How many words start with the letter 'o' in the sentence.

Answer: 2


Question: Sentence: 'a hydrant is sitting outside in the dirt'. How many words start with the letter 'i' in the sentence.

Answer: 2


Question: Sentence: 'a pitcher throwing a baseball during a baseball game'. How many words start with the letter 'b' in the sentence.

Answer:
2