user: When people go to Fábrica de Pastéis de Belém to get a pastel de nata, how do people usually eat it? And what is the recipe.

assistant: Typically people have their pastel de nata with cinnamon and a strong espresso coffee.
The original recipe is well kept secret since the Fábrica de Pastéis de Belém opened. It is stored on a secret room.

user: Can you help me to categorize these things as either "expensive", "not expensive", or "I don't know": air, gold, rock, rocket and dream.

assistant: Air and rock are not expensive, but gold and rocket are expensive. I don't know if dream is expensive or not.

user: Given a reference text about the IBJJF, provide two tournaments organized by IBJJ and the ruleset used by these tournaments.

assistant: World No-Gi Championship and Pan Jiu-Jitsu Championship are two tournaments organized by the IBJJF. They follow the ruleset of the CBJJ.