With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Robert Downey Jr. was in the film Sherlock Holmes: A Game of Shadows.
text_B: Albert of Aix -LRB- - la-Chapelle -RRB- or Albert of Aachen -LRB- floruit circa AD 1100 -RRB- , historian of the First Crusade , was born during the later part of the 11th century , and afterwards became canon -LRB- priest -RRB- and custos -LRB- guardian -RRB- of the church of Aachen .. historian. historian. First Crusade. First Crusade. canon. Canon ( priest ). Aachen. Aachen. Crusade. Crusade. Nothing else is known of his life except that he was the author of a Historia Hierosolymitanae expeditionis -LRB- `` History of the Expedition to Jerusalem '' -RRB- , or Chronicon Hierosolymitanum de bello sacro , a work in Latin in twelve books , written between 1125 and 1150 .. Latin. Latin language. This history begins at the time of the Council of Clermont , deals with the fortunes of the First Crusade and the earlier history of the Latin Kingdom of Jerusalem , and ends somewhat abruptly in 1121 .. First Crusade. First Crusade. Latin. Latin language. Council of Clermont. Council of Clermont. Kingdom of Jerusalem. Kingdom of Jerusalem. Crusade. Crusade. The Historia was well known during the Middle Ages , and was largely used by William , archbishop of Tyre , for the first six books of his Belli sacri historia .. Middle Ages. Middle Ages. William. William of Tyre. archbishop of Tyre. archbishop of Tyre. Belli sacri historia. Belli sacri historia. In modern times , it was accepted unreservedly for many years by most historians , including Edward Gibbon .. Edward Gibbon. Edward Gibbon. In more recent times , its historical value has been seriously impugned , but the verdict of the best scholarship seems to be that in general it forms a true record of the events of the First Crusade , although containing some legendary matter .. First Crusade. First Crusade. Crusade. Crusade. Albert never visited the Holy Land , but he appears to have had a considerable amount of discourse with returned crusaders , and to have had access to valuable correspondence .. Holy Land. Holy Land. Unlike many other chronicles of the First Crusade , Albert did not rely on the Gesta Francorum , but used his own independent interviews ; he may also have had access to the Chanson d'Antioche , as his work shares textual similarities with that poem .. First Crusade. First Crusade. Crusade. Crusade. Gesta Francorum. Gesta Francorum. Chanson d'Antioche. Chanson d'Antioche. The first edition of the history was published at Helmstedt in 1584 , and a good edition is in the Recueil des historiens des croisades , tome iv -LRB- Paris , 1841 -- 1887 -RRB- .. Helmstedt. Helmstedt. Recueil des historiens des croisades. Recueil des historiens des croisades
not_related.