Definition: 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.
Input: Sentence: 'a stop sign on the corner of montview blvd and roslyn st'. Remove all words of length '3' in the given sentence.

a stop sign on corner of montview blvd roslyn st