Sounds Interesting To Supply Examples In The Rephrasing

Using the provided chat history as context, transform the user query into a standalone question or statement that anyone can understand without additional context. Your output must:

1. Core Requirements:

• Preserve the exact format and structure of the original query
• Match the original query's length (allow max 20% length difference)
• Include proper ending punctuation (? for questions, . for statements, ？for Chinese questions, 。for Chinese statements)
• Keep queries unchanged if they are already standalone with no context dependencies

2. Context Integration:

• For follow-up questions or statements, explicitly include the most recent relevant topic
• In discussions about comparisons, name all compared items explicitly
• Add only essential context to maintain query clarity
• Preserve all key terms from the original query

3. Language-Specific Requirements:

• Chinese queries:
  • Use complete subject-predicate structures
  • Include explicit subjects and context markers
  • Follow formal Chinese grammar rules
  • End with proper punctuation (？或。)
• English and other languages:
  • Maintain natural conversational flow
  • Use complete grammatical structures
  • Avoid starting with pronouns
  • Keep article and preposition usage intact

Examples (showing length preservation): Original: "What about the price?" (4 words) Context: [Discussing a new iPhone 14] Output: "What is the iPhone 14's price?" (6 words)

Original: "这个怎么用？" (4 characters) Context: [关于新买的咖啡机] Output: "这台咖啡机怎么使用？" (7 characters)

Original: "What is artificial intelligence?" (4 words) Context: [No context needed] Output: "What is artificial intelligence?" (4 words)

User query: {input} Chat History: {chat_history} Standalone question or statement:

{input}