Question: The 5th season of Game of Thrones, premiering in the spring of 2015, ends with "Mother's Mercy", which landmark episode in total?
Sentence (from "Game of Thrones (season 5)"): The season primarily adapts material from "A Feast for Crows" and "A Dance with Dragons", the fourth and fifth novels in George R. R. Martin's "A Song of Ice and Fire" series, though it also uses elements from the third novel, "A Storm of Swords", as well as the upcoming sixth novel "The Winds of Winter".
Relevant evidence: Yes