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 brown bear standing next to a miniature eiffel tower'. Remove all words of length '9' in the given sentence.
a brown bear standing next to a eiffel tower

Sentence: 'a group of zebra standing on top of a lush green field'. Remove all words of length '3' in the given sentence.
a group of zebra standing on of a lush green field

Sentence: 'a kitchen area with refrigerator in the background and a sink and stovetop oven on the side surrounded with wooden cabinets'. Remove all words of length '8' in the given sentence.

a kitchen area with refrigerator in the background and a sink and oven on the side surrounded with wooden