instruction:
In this task, you need to reverse 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.
question:
Sentence: 'there is a large black bear that is siting on a rock'. Reverse all words of length '5' in the given sentence.
answer:
ereht is a egral kcalb bear that is siting on a rock


question:
Sentence: 'a man riding skis down a snow covered slope'. Reverse all words of length '5' in the given sentence.
answer:
a man riding skis down a snow covered epols


question:
Sentence: 'the toy train is parked on the railroad tracks'. Reverse all words of length '6' in the given sentence.
answer:

the toy train is dekrap on the railroad skcart