You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "total number of countries all over the world?" whose answer is 197.
Each document should contain about 30 words, and these documents should contain useful information.

Query: total number of countries in the world
Useful Output:

Doc 1: Currently, the UN recognizes 193 countries as member states. It also considers two observer states, the Holy See/Vatican City and Palestine.
Doc 2: There are 198 countries in the world. If you count UN voting members, plus its two permanent observers and Taiwan, there are 196.
Doc 3: We state that there are 195 countries based on the 193 that belong to the United Nations (UN) plus the Holy See (Vatican) and the State of Palestine.
Doc 4: According to the United Nations, there are 195 countries, out of which 193 countries are United Nations members.
Doc 5: So there you have it! Next time someone tells you "There are 195 countries in the world," remember that the real answer isn't so simple!