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: 'birds are standing in a row on a wooden railing'. How many words start with the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'funny close up of a man staring cross eyed at a remote control in his mouth'. How many words start with the letter 'c' in the sentence.

Answer: 3


Question: Sentence: 'a very pretty girl flying a kite in a field'. How many words start with the letter 'a' in the sentence.

Answer:
3