With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Kingdom of Georgia lasted for several centuries.
text_B: The Kingdom of Georgia , also known as the Georgian Empire , was a medieval monarchy which emerged in circa 1008 AD .. Georgian. Georgian language. monarchy. monarchy. Anno Domini. Georgia. Georgia ( country ). It reached its Golden Age of political and economic strength during the reign of King David IV and Queen Tamar the Great from 11th to 13th centuries .. King. List of Georgian monarchs. its Golden Age. Georgian Golden Age. David IV. David IV of Georgia. Tamar the Great. Tamar of Georgia. At the peak of its dominance , the kingdom 's influence spanned from the south of modern-day Ukraine to the northern provinces of Iran , while also maintaining religious possessions in the Holy Land and Greece .. Ukraine. Ukraine. Iran. Iran. possessions. Monastery of the Cross. Holy Land. Holy Land. Greece. Iviron. A predominantly Christian , Georgian-speaking realm , it was the principal historical precursor of present-day Georgia .. Georgian. Georgian language. Christian. Eastern Orthodox Christian. Georgia. Georgia ( country ). Lasting for several centuries , the kingdom fell to the Mongol invasions in the 13th century , but managed to re-assert sovereignty by the 1340s .. Mongol invasions. Mongol invasions of Georgia. The following decades were marked by Black Death spread by the nomads , as well as numerous invasions under the leadership of Tamerlane , who devastated the country 's economy , population , and urban centers .. Black Death. Black Death. Tamerlane. Tamerlane. The Kingdom 's geopolitical situation further worsened after the Fall of Constantinople , which effectively marked the end of the Eastern Roman Empire , Georgia 's traditional ally .. Georgia. Georgia ( country ). Fall of Constantinople. Fall of Constantinople. Eastern Roman Empire. Eastern Roman Empire. As a result of these processes , by the end of the 15th century Georgia turned into an isolated , fractured Christian enclave , surrounded by hostile Turco-Iranic neighbors .. Christian. Eastern Orthodox Christian. Georgia. Georgia ( country ). Renewed incursions from 1386 led to the final collapse of the kingdom into anarchy by 1466 and the mutual recognition of its constituent kingdoms of Kartli , Kakheti and Imereti as independent states between 1490 and 1493 .. incursions. Timur's invasions of Georgia. Kartli. Kingdom of Kartli. Kakheti. Kingdom of Kakheti. Imereti. Kingdom of Imereti
related.