With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Russia is part of both Europe and Asia.
text_B: Eurasia -LSB- yʊˈreɪʒə -RSB- is a combined continental landmass of Europe and Asia .. continental landmass. continental landmass. Europe. Europe. Asia. Asia. The term is a portmanteau of its constituent continents .. portmanteau. portmanteau. Located primarily in the Northern and Eastern Hemispheres , it is bordered by the Atlantic Ocean to the west , the Pacific Ocean to the east , the Arctic Ocean to the north , and by Africa , the Mediterranean Sea , and the Indian Ocean to the south .. Northern. Northern Hemisphere. Atlantic Ocean. Atlantic Ocean. Pacific Ocean. Pacific Ocean. Arctic Ocean. Arctic Ocean. Africa. Africa. Mediterranean Sea. Mediterranean Sea. Indian Ocean. Indian Ocean. The division between Europe and Asia as two different continents is a historical and cultural construct , with no clear physical separation between them ; thus , in some parts of the world , Eurasia is recognized as the largest of five or six continents .. Europe. Europe. Asia. Asia. cultural construct. cultural construct. In geology , Eurasia is often considered as a single rigid megablock .. However , the rigidity of Eurasia is debated based on the paleomagnet data .. paleomagnet. Paleomagnetism. Eurasia covers around 55,000,000 km2 , or around 36.2 % of the Earth 's total land area .. Earth. Earth. The landmass contains around 5.0 billion people , equating to approximately 70 % of the human population .. human population. human population. Humans first settled in Eurasia between 60,000 and 125,000 years ago .. Some major islands , including Great Britain , Iceland , and Ireland , and those of Japan , the Philippines and Indonesia , are included under the popular definition of Eurasia , in spite of being separate from the massive landmass .. Great Britain. Great Britain. Iceland. Iceland. Ireland. Ireland. Japan. Japan. Philippines. Philippines. Indonesia. Indonesia. Physiographically , Eurasia is a single continent .. Physiographically. Physical geography. The concepts of Europe and Asia as distinct continents date back to antiquity and their borders are geologically arbitrary .. Europe. Europe. Asia. Asia. antiquity. classical antiquity. In ancient times the Black Sea and the Sea of Marmara , along with their associated straits , were seen as separating the continents , but today the Ural and Caucasus ranges are more seen as the main delimiters between the two .. Black Sea. Black Sea. Sea of Marmara. Sea of Marmara. Ural. Ural Mountains. Caucasus. Caucasus Mountains. Eurasia is connected to Africa at the Suez Canal , and Eurasia is sometimes combined with Africa to make the largest contiguous landmass on Earth called Afro-Eurasia .. Africa. Africa. Earth. Earth. Suez Canal. Suez Canal. Afro-Eurasia. Afro-Eurasia. Due to the vast landmass and differences in latitude , Eurasia exhibits all types of climate under the Koppen classification , including the harshest types of hot and cold temperatures , high and low precipitation and various types of ecosystems .. Koppen classification. Koppen climate classification
related.