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: 'a man on a surfboard rides a wave'. Remove all words of length '5' in the given sentence.
a man on a surfboard a wave

Sentence: 'a little kid standing next to a toilet'. Remove all words of length '8' in the given sentence.
a little kid next to a toilet

Sentence: 'an ironing board next to a fridge in a room'. Remove all words of length '7' in the given sentence.

an board next to a fridge in a room