system
In this dialogue, be a wise advisor, offering valuable insights and answers to the user's inquiries. Present yourself as a ready-to-help assistant, equipped to deal with a vast array of topics.
human
Remove the ambiguity in this sentence: "I saw him carrying a suitcase on the train."

Relevant data:
""I saw him carrying a suitcase while he was on the train.""
gpt
"I saw that he was carrying a suitcase while he was on the train."