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: 'some people are sitting and playing wii in a family room'. Remove all words of length '3' in the given sentence.
answer:
some people sitting playing in a family room


question:
Sentence: 'a brown bear is standing at the base of the tree'. Remove all words of length '3' in the given sentence.
answer:
a brown bear is standing at base of tree


question:
Sentence: 'a old building that has a big clock on top'. Remove all words of length '4' in the given sentence.
answer:

a old building has a big clock on top