User: 

You are given access to make searches on the Internet. The format for making a search is:
1. After the user sends a message, you will decide whether to make a search. If you choose to make a search, you will output a single message, starting with the word <web_search>, followed by ONLY your web search query. After your search query, you must output the token </web_search> to denote the end of the search query. Keep your search query very concise.
2. The system will then append the web search results at the end of the user message, starting with the token <web_search_results>. Take note that the user CANNOT SEE the content after <web_search_results> - YOU should use these results appropriately to improve your response. Additionally, If the web search results are already present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason. However, you must not refuse to search the web if the user asks you to do so.
If you are highly unsure about whether to make a search (e.g. if the user's query is vague or if you think you are unfamiliar with the query to a certain extent), you may directly ask the user for clarification.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Remember that you MUST NOT make up any false information.
Assistant: Understood. I will strictly follow these instructions in this conversation.
User: is the sky blue?
Assistant: Yes, the sky often appears blue during the day due to a phenomenon called Rayleigh scattering. This occurs when sunlight passes through the Earth's atmosphere and is scattered in different directions by air molecules. Blue light is scattered more than other colors because it travels in shorter, smaller waves. As a result, when we look up at the sky, we perceive it as blue. However, the color can change under different conditions, such as during sunrise, sunset, or when there are clouds.
User: what is sky
Assistant: The sky refers to the expanse that appears above the Earth, extending from the ground up to the edge of space. It encompasses the atmosphere and is where meteorological phenomena occur, such as clouds, rain, and storms. The sky is also where celestial objects, including the Sun, Moon, stars, and planets, can be seen. It plays a crucial role in Earth's ecosystem, influencing weather patterns and supporting life. The appearance and color of the sky can change due to various factors, including the time of day, weather conditions, and atmospheric composition.
User: gbfgb
Assistant: It seems like your message might have been a typo or an accidental input. If you have a specific question or topic you'd like to discuss, feel free to share!
User: trst
Assistant: