With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Philip V of Spain was unable to reign.
text_B: Philip V -LRB- Felipe V , Philippe , Filippo 19 December 1683 -- 9 July 1746 -RRB- was King of Spain from 1 November 1700 to 15 January 1724 , when he abdicated in favour of his son Louis , and from 6 September 1724 , when he reassumed the throne upon his son 's death , to his own death 9 July 1746 .. King of Spain. List of Spanish monarchs. Spain. Spain. Louis. Louis I of Spain. Before his reign , Philip occupied an exalted place in the royal family of France as a grandson of King Louis XIV .. France. France. Louis. Louis I of Spain. Louis XIV. Louis XIV of France. His father , Louis , the Grand Dauphin , had the strongest genealogical claim to the throne of Spain when it became vacant in 1700 .. Spain. Spain. Louis. Louis I of Spain. However , since neither the Grand Dauphin nor Philip 's older brother , Louis , Duke of Burgundy , could be displaced from their place in the succession to the French throne , King Charles II of Spain named Philip as his heir in his will .. Charles II. Charles II of Spain. Spain. Spain. Louis. Louis I of Spain. Charles II of Spain. Charles II of Spain. It was well known that the union of France and Spain under one monarch would upset the balance of power in Europe , such that other European powers would take steps to prevent it .. France. France. Spain. Spain. Indeed , Philip 's accession in Spain provoked the 14-year War of the Spanish Succession , which continued until the Treaty of Utrecht forbade any future possibility of unifying the French and Spanish thrones .. Spain. Spain. War of the Spanish Succession. War of the Spanish Succession. Treaty of Utrecht. Treaty of Utrecht. Philip was the first member of the House of Bourbon to rule as king of Spain .. Spain. Spain. Bourbon. House of Bourbon. House of Bourbon. House of Bourbon. The sum of his two reigns , 45 years and 21 days , is the longest in modern Spanish history .
related.