"All I know about Werewolf and Vampire weakness are..."
Richard explained this in front of the class when he was given the opportunity by his history teacher to be able to explain the theme of the lesson that Jessica wrote on the whiteboard.
Richard explained the weakness of the Vampire first. Where in short Vampires have a weakness with the condition of their bodies that can not be exposed to sunlight and ultraviolet light. Because if a Vampire wanders around during the day then, they can get burned directly when exposed to sunlight. Not too much can be explained by Richard about Vampires.
Because he knows the weakness of Vampire from watching movies, not from his search on the internet.
When Richard briefly explained about Vampires, maybe the other students just nodded their heads trying to understand what the white man in front of the class was saying.