The "Open Information Extraction" tool at AllenAI returns incorrect answers for this query: who governs the United States. For each of the following sentence that was matched by this query, explain what is the source of the mistake: Lexical knowledge, Syntax, Semantics. Answer: AFRICA / We Africans are happy, proud that a son of Africa governs the United States of America Answer: LAW / The House of Representatives drafts and passes laws that, when signed by the president, govern the Unites States and its citizens. Answer: THE SITE / All matters relating to the site are governed by United States Law.