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: 'the statue of three big upright baseball bats is in front of the stadium entrance'. Remove all words of length '4' in the given sentence.

the statue of three big upright baseball is in front of the stadium entrance