Question: A list of potions used in the "Harry Potter" series, mentioned in potions class at Hogwarts, which is taught by Severus Snape in books one to five,  Severus Snape is a fictional character in which author's "Harry Potter" series?
Sentence (from "Severus Snape"): A Professor at Hogwarts School of Witchcraft and Wizardry, Snape is hostile to the series' protagonist, Harry, the moment he sets foot in Snape's classroom; this hostility is rooted in Harry's resemblance to Harry's father James, who bullied and harassed Snape during their time at Hogwarts.
Relevant evidence: No