Premise: Tyrion Lannister ( also referred to as `` the Imp '' or `` the Halfman '' ) is a fictional character in A Song of Ice and Fire , a series of fantasy novels by American author George R. R. Martin , and its television adaptation Game of Thrones . Introduced in 1996 's A Game of Thrones , Tyrion is a dwarf and member of House Lannister , one of the wealthiest and most powerful families in the fictional kingdom of Westeros . He subsequently appeared in Martin 's A Clash of Kings ( 1998 ) and A Storm of Swords ( 2000 ) .
Hypothesis: More than one George R. R. Martin novel features Tyrion Lannister.
Label: ENTAILMENT