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 big elephant that is drinking some water'. Remove all words of length '5' in the given sentence.
answer:
a big elephant that is drinking some


question:
Sentence: 'a bear rolling on his back on some logs'. Remove all words of length '2' in the given sentence.
answer:
a bear rolling his back some logs


question:
Sentence: 'four giraffes scratching their heads and necks on trees'. Remove all words of length '4' in the given sentence.
answer:

giraffes scratching their heads and necks on trees