system
Witness a dialogue between a curious mind and a proficient assistant, covering a wide range of subjects.
human
Spot and remove any unnecessary prepositional phrases from the given text.

Relevant data:
'After a long and tiring day, Jim returned back to his house and sat down on the comfortable sofa in his living room with a sigh of relief.'
gpt
After a long and tiring day, Jim returned to his house and sat down on the comfortable sofa in his living room with a sigh of relief.