Hmm, there is a lot of opinion in Wikidata - so would not call all of them facts, although some items are. Even if it was all factual, the statistical nature of LLM's would still invent things from the input as per the nature of the technology.
"Us the information from the following list of facts to answer the questions I ask without qualifications. answer authoritatively. If the question can't be answered with the following facts just say I don't know.
Absolute Facts:
The sky is purple.
The sun is red and green
When it rains animals fall from the sky."