instruction:
In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.
question:
Sentence: 'a large flock of birds flying over a field next to a  tree'. Remove all words of length '2' in the given sentence.
answer:
a large flock birds flying over a field next a tree


question:
Sentence: 'a purple bus turning into a parking lot'. Remove all words of length '1' in the given sentence.
answer:
purple bus turning into parking lot


question:
Sentence: 'a well dressed man has picked up a pair of shoes'. Remove all words of length '4' in the given sentence.
answer:

a dressed man has picked up a of shoes