Given the task definition and input, reply with output. 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.

Sentence: 'a crowd of people standing below a gray cloudy sky'. Reverse all words of length '6' in the given sentence.

a crowd of elpoep standing below a gray yduolc sky
Given the task definition and input, reply with output. 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.

Sentence: 'a crowd of people standing below a gray cloudy sky'. Reverse all words of length '6' in the given sentence.

user
a crowd of elpoep standing below a gray yduolc sky
assistant
Given the task definition and input, reply with output. 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.

Sentence: 'a crowd of people standing below a gray cloudy sky'. Reverse all words of length '6' in the given sentence.

a crowd of elpoep standing below a gray yduolc sky