Question: "A Song of Ice and Fire" is an ongoing series of epic fantasy novels by American novelist and screenwriter George R. R. Martin, the first installment of the series, "A Game of Thrones", which was originally planned as a trilogy, was published in which year?
Sentence (from "Themes in A Song of Ice and Fire"): The series now consists of five published volumes, and two more volumes are planned.
Relevant evidence: No