Question: Odense Steel Shipyard was best known for building container ships for its parent group the largest container ship and supply vessel operator in the world since what year?
Sentence (from "Odense Steel Shipyard"): It was best known for building container ships for its parent group, A.P. Moller – Maersk Group, including the Mærsk E-class in 2006 which at the time were the biggest container ships in the world.
Relevant evidence: Yes