subclass_of dar 4
An ___MASK4___ is a machine that is able to fly by gaining support from the air . It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil , or in a few cases the downward thrust from jet engines . Turkey , officially the ___MASK1___ of Turkey ( ___MASK90___ : ), is a transcontinental country in Eurasia , mainly in Anatolia in Western Asia , with a smaller portion on the Balkan peninsula in Southeast Europe . Turkey is a democratic , secular , unitary , parliamentary republic with a diverse cultural heritage . Turkey is bordered by eight countries : Greece to the west ; Bulgaria to the northwest ; Georgia to the northeast ; Armenia , the Azerbaijani exclave of Nakhchivan and Iran to the east ; and Iraq and Syria to the south . The Aegean Sea is to the west , the Black Sea to the north , and the Mediterranean Sea to the south . The Bosphorus , the Sea of Marmara , and the Dardanelles , which together form the ___MASK90___ Straits , divide Thrace and Anatolia ; they also separate Europe and Asia . Turkey ' s location has given it geopolitical and strategic importance throughout history . Air cargo is any ___MASK91___ carried or to be carried in an ___MASK4___ . Air cargo comprises air freight , air express and airmail . The Black ___MASK77___ is a body of water between Eastern Europe and Western Asia , bounded by Bulgaria , Georgia , Romania , Russia , Turkey , and Ukraine . It is supplied by a number of major rivers , such as the Danube , Dnieper , Rioni , Southern Bug , and Dniester . The Black ___MASK77___ has an area of ( not including the ___MASK77___ of Azov ), a maximum depth of , and a ___MASK99___ of . It is constrained by the Pontic Mountains to the south and by the Caucasus Mountains to the east , and features a wide shelf to the northwest . The longest east - west extent is about . The DAR 4 was a prototype ___MASK66___ built in Bulgaria in 1930 . An ___MASK66___ is a type of ___MASK4___ for transporting passengers and air cargo . Such ___MASK4___ are most often operated by airlines . Although the definition of an ___MASK66___ can vary from country to country , an ___MASK66___ is typically defined as an ___MASK4___ intended for carrying multiple passengers or cargo in commercial service . An ___MASK72___ is a company that provides air transport services for traveling passengers and freight . Airlines utilize ___MASK4___ to supply these services and may form partnerships or alliances with other airlines for codeshare agreements . Generally , ___MASK72___ companies are recognized with an air operating certificate or license issued by a governmental aviation body . Romania is a ___MASK52___ located in Southeastern Europe . It borders the Black ___MASK77___ , Bulgaria , Ukraine , Hungary , Serbia , and Moldova . It has an area of and a temperate - continental climate . With 19 . 94 million inhabitants , the country is the seventh - most - populous member state of the European Union . The capital and largest city , Bucharest , with its 1 , 883 , 425 inhabitants is the sixth - largest city in the EU . Serbia , officially the ___MASK1___ of Serbia , is a ___MASK52___ situated at the crossroads of Central and Southeast Europe , covering the southern ___MASK62___ of the Pannonian Plain and the central Balkans . Relative to its small territory , it is a diverse ___MASK70___ distinguished by a " transitional " ___MASK100___ , situated along cultural , geographic , climatic and other boundaries . Serbia is landlocked and borders Hungary to the north ; Romania and Bulgaria to the east ; Macedonia to the south ; and Croatia , Bosnia - Herzegovina , and Montenegro to the southwest ; it also claims a border with Albania through the disputed territory of Kosovo . Serbia numbers around 7 million residents , and its capital , Belgrade , ranks among the largest cities in Southeast Europe . A passenger ( also abbreviated as pax ) is a ___MASK49___ who travels in a ___MASK76___ but bears little or no responsibility for the tasks required for that ___MASK76___ to arrive at its destination or otherwise operate the ___MASK76___ . Greece (' ), officially the Hellenic ___MASK1___ ( Greek : ' ), historically also known as Hellas ("" ), is a country in southeastern Europe . Greece ' s population is approximately 10 . 955 million as of 2015 . Athens is the nation ' s ___MASK50___ and largest ___MASK39___ , followed by Thessaloniki . Bulgaria ( tr . '), officially the ___MASK1___ of Bulgaria ( tr . '), is a country in southeastern Europe . It is bordered by Romania to the north , Serbia and Macedonia to the west , Greece and Turkey to the south , and the Black ___MASK77___ to the east . With a territory of , Bulgaria is Europe ' s 16th - largest country .