With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Justin Trudeau was enrolled at The Polytechnique Montréal.
text_B: The French title Duc d'Aiguilion may refer to any one of its holders  :. Charles of Lorraine , Duke of Mayenne 1599 -- 1611. Henry Duke of Mayenne 1611 -- 1621 -LRB- son of Charles duke of Mayenne -RRB-. Henry Duke of Mayenne. Henry Duke of Mayenne. Incorporated to the French crown 1621 -- 1638 .. Cardinal Richelieu purchased this dukedom in 1638 and gave it to Marie Madeleine , the daughter of Rene Vignerot and his wife Francoise du Plessis , sister of Richelieu  :. Cardinal Richelieu. Cardinal Richelieu. Marie Madeleine. Duchesse d'Aiguillon. Marie Madeleine De Vignerot De Plessis 1638 -- 1675. Marie Madeleine. Duchesse d'Aiguillon. Marie Madeleine De Vignerot De Plessis. Marie Madeleine De Vignerot De Plessis. Terese d'Aiguillon 1675 -- 1731 -LRB- niece of Marie Madeleine -RRB-. Marie Madeleine. Duchesse d'Aiguillon. Terese d'Aiguillon. Terese d'Aiguillon. Armand I d'Aiguillon 1731 -- 1750 -LRB- nephew of Terese -RRB-. Armand I d'Aiguillon. Armand I d'Aiguillon. Emmanuel-Armand de Richelieu , duc d'Aiguillon 1750 -- 1788 -LRB- son of Armand -RRB-. Armand , duc d'Aiguillon 1788 -- 1789 -LRB- son of Emmanuel-Armand -RRB-. Suppressed by the French Revolution 1789 .. French Revolution. French Revolution
not_related.