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.

Sentence: 'an older woman playing with an interactive gaming unit'. Remove all words of length '5' in the given sentence.
an playing with an interactive gaming unit

Sentence: 'a ram that is standing on the grass'. Remove all words of length '1' in the given sentence.
ram that is standing on the grass

Sentence: 'there is a man that is wearing a tie in a green shirt'. Remove all words of length '3' in the given sentence.

there is a that is wearing a in a green shirt