Challenge Aero
Challenge Aero is a business aviation airline based in Kiev , Ukraine established in 2002 . 
<triplet> Challenge Aero <subj> airline <obj> instance of <subj> Kiev <obj> headquarters location <subj> Ukraine <obj> country <subj> 2002 <obj> inception <triplet> Kiev <subj> Ukraine <obj> country <triplet> Ukraine <subj> Kiev <obj> contains administrative territorial entity