Romania and which other country joined the EU on the 1st January 2007?
romania and which other country joined the eu on the 1st january 2007
FreebaseQA-train-6885.P0 FreebaseQA-train-6885.P1
eu eu
european union european union
m.0_6t_z8 m.0_6t_z8
organization.membership_organization.members..organization.organization_membership.member user.ktrueman.default_domain.international_organization.member_states
m.015qh
bulgaria
m.015qh
bulgaria