With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Asia has different countries.
text_B: Asia is Earth 's largest and most populous continent , located primarily in the eastern and northern hemispheres and sharing the continental landmass of Eurasia with the continent of Europe and shares the continental landmass of Afro-Eurasia with both Europe and Africa .. Earth. Earth. continent. continent. eastern. eastern hemisphere. northern. northern hemisphere. hemispheres. Hemisphere of the Earth. Eurasia. Eurasia. Europe. Europe. Afro-Eurasia. Afro-Eurasia. Africa. Africa. Asia covers an area of 44,579,000 km2 , about 30 % of Earth 's total land area and 8.7 % of the Earth 's total surface area .. Earth. Earth. The continent , which has long been home to the majority of the human population , was the site of many of the first civilizations .. continent. continent. human population. human population. first civilizations. cradle of civilization. Asia is notable for not only its overall large size and population , but also dense and large settlements as well as vast barely populated regions within the continent of 4.4 billion people .. continent. continent. In general terms , Asia is bounded on the east by the Pacific Ocean , on the south by the Indian Ocean and on the north by the Arctic Ocean .. Pacific Ocean. Pacific Ocean. Indian Ocean. Indian Ocean. Arctic Ocean. Arctic Ocean. The western boundary with Europe is a historical and cultural construct , as there is no clear physical and geographical separation between them .. Europe. Europe. cultural construct. cultural construct. The most commonly accepted boundaries place Asia to the east of the Suez Canal , the Ural River , and the Ural Mountains , and south of the Caucasus Mountains and the Caspian and Black Seas .. Suez Canal. Suez Canal. Ural River. Ural River. Ural Mountains. Ural Mountains. Caucasus Mountains. Caucasus Mountains. Caspian. Caspian Sea. China and India alternated in being the largest economies in the world from 1 to 1800 CE .. China. China. India. India. largest economies in the world. List of regions by past GDP ( PPP ). China was a major economic power and attracted many to the east , and for many the legendary wealth and prosperity of the ancient culture of India personified Asia , attracting European commerce , exploration and colonialism .. China. China. India. India. The accidental discovery of America by Columbus in search for India demonstrates this deep fascination .. India. India. The Silk Road became the main East-West trading route in the Asian hitherland while the Straits of Malacca stood as a major sea route .. Asian. Asian people. Silk Road. Silk Road. Straits of Malacca. Straits of Malacca. Asia has exhibited economic dynamism -LRB- particularly East Asia -RRB- as well as robust population growth during the 20th century , but overall population growth has since fallen .. Asia was the birthplace of most of the world 's mainstream religions including Christianity , Islam , Judaism , Hinduism , Buddhism , Confucianism , Taoism -LRB- or Daoism -RRB- , Jainism , Sikhism , Zoroastranism , as well as many other religions .. Christianity. Christianity. Islam. Islam. Judaism. Judaism. Hinduism. Hinduism. Buddhism. Buddhism. Confucianism. Confucianism. Taoism. Taoism. Jainism. Jainism. Sikhism. Sikhism. Zoroastranism. Zoroastranism. Given its size and diversity , the concept of Asia -- a name dating back to classical antiquity -- may actually have more to do with human geography than physical geography .. name. toponymy. classical antiquity. classical antiquity. human geography. human geography. physical geography. physical geography. Asia varies greatly across and within its regions with regard to ethnic groups , cultures , environments , economics , historical ties and government systems .. its regions. Regions of Asia. It also has a mix of many different climates ranging from the equatorial south via the hot desert in the Middle East , temperate areas in the east and the continental centre to vast subarctic and polar areas in Siberia .. Middle East. Middle East. Siberia. Siberia
related.