premise: Bjarki Már Karlsson (b. 1965) is a poet, linguist, and systems analyst. His first poetry collection, "Árleysi alda", won the Bókmenntaverðlaun Tómasar Guðmundssonar (Tómas Guðmundsson Award) for 2013. and the Bókmenntaverðlaun starfsfólks bókaverslana in the poetry category in the same year. The book was Iceland's best-selling poetry collection in 2013.
hypothesis: Bjarki Már Karlsson won the Bókmenntaverðlaun Tómasar Guðmundssonar and the Bókmenntaverðlaun starfsfólks bókaverslana in different years.
reason: He won them in the same year. I used similar wording to the context.