Task: Question Answering
Input (English): Context_1 : C1000 was a Dutch supermarket chain. Founded on 1 April 1977, the chain had 500 stores as of 2012, with a market share of 12.1%. The supermarket chain operates in a rather unusual manner for supermarkets in the Netherlands, using the franchise system. Context_2 : Maxi D is a Macedonian discount supermarket chain, a part of the Skopski pazar AD Skopje company. The company also owns the supermarket chain SP market. Skopski pazar's supermarket chain is one of the biggest in the Republic of Macedonia. Context_3 : Food For Less was an Australian discount supermarket chain owned by Woolworths Limited. It was originally established in Queensland, where a discount 'food barn' chain operating as "Jack the Slasher" was acquired by Woolworths in the early 1980s. It later expanded into New South Wales and became the low-cost supermarket chain for Woolworths, competing with Franklins No Frills and Coles' Bi-Lo. The chain expanded on the purchase of 67 of the Franklins supermarket chain stores in New South Wales and Queensland by Woolworths. The "No Frills" stores then became Food For Less stores with a more upmarket appearance (edging closer to that of Woolworths) and also launched a new logo at the same time. It is positioned as a budget low-cost chain and while it mainly sells dry groceries and frozen perishables only, a small number of older stores also sell fruit and vegetables. Since 2010 most stores have closed or been refurbished and converted into Woolworths. As of April 2016 only 2 stores remain open, Roselands and Beresfield NSW. The store in Maryborough QLD closed its doors in November 2016. However, due to competition from Aldi, Woolworths have considered reviving the budget brand. Context_4 : Clemens Markets also known as Clemens Family Markets was a supermarket chain in the Philadelphia area. It was family-owned from the founding of its first store in Lansdale, Pennsylvania to the sale of the company in 2006. Clemens was one of three independent supermarket chains to identify as "family markets" in Greater Philadelphia. Another was Genuardi's, which was sold to Safeway Inc. in 2000. The last one was Giunta's, which went out of business soon after Clemens. During the 1980s and 1990s, Clemens expanded by opening many new locations; eventually Clemens operated 20 supermarkets in three Pennsylvania counties, moving its headquarters to Kulpsville, Pennsylvania in 1993. The chain eventually acquired many Thriftway/Shop 'n Bag franchises. Many of these were also former Acme, A&P, Food Fair, and Penn Fruit stores. Clemens later acquired many former Shop 'n Save stores which themselves started as Super G. In 1999, it introduced its upscale FoodSource division, which had three locations. One of these stores was a former Zagara's, a gourmet supermarket chain itself a division of Genuardi's and later Safeway. Context_5 : Loeb was a supermarket chain in Eastern Ontario, Canada. It was once Ottawa's second-largest supermarket chain behind Loblaws. Each of the stores averaged 26114 sqft in size. Loeb was acquired by the Quebec-based supermarket chain Metro in 1999 and converted to the Metro brand in 2008/2009. Context_6 : AH Basic is a discount brand of everyday commodities developed, marketed and introduced by the Ahold group, to replace the Euro Shopper discount brand in all Albert Heijn stores in Belgium, Germany and the Netherlands from April 2013 to 2014. Context_7 : Albert Heijn B.V. is the largest Dutch supermarket chain, founded in 1887 in Oostzaan, Netherlands. It is named after Albert Heijn, Sr., the founder of the first store in Oostzaan. Context_8 : Hatzi Hinam or Hetzi Hinam (Hebrew: חצי חינם‎ ‎ , "lit." half-free, from Hebrew: בחצי חינם‎ ‎ , "very cheaply") is a supermarket chain in Israel. Founded in the early 1990s, the regional independent supermarket chain is headquartered in Holon, and has seven stores in the Gush Dan area. Hatzi Hinam is the fourth largest supermarket chain in Israel, with a market share of over 5% but has significantly fewer stores than the two major Israeli chains. In 2004, the company had an estimated NIS1.1 billion in sales and was confirmed the largest independent supermarket chain. Cousins Zaki Shalom and Mordechai Kuperly share ownership (67%/33%) of the chain. Context_9 : Euro Shopper is a discount brand of everyday commodities developed and marketed by AMS Sourcing B.V.. It was introduced to the market in 1996 and branded products have been sold by some of the AMS members in different countries in Europe ever since. In all stores owned by the Dutch Ahold group, all Euro-Shopper products are completely phasing out to become AH Basic. Context_10 : Super de Boer was a Dutch supermarket chain which operated in the country. The holding company which owned Super de Boer, "Super de Boer N.V." was formerly named "Laurus N.V.", but changed its name to that of its only remaining retail brand in January 2008. fact_1 : AH Basic is a discount brand of everyday commodities developed, marketed and introduced by the Ahold group, to replace the Euro Shopper discount brand in all Albert Heijn stores in Belgium, Germany and the Netherlands from April 2013 to 2014. fact_2 : Albert Heijn B.V. is the largest Dutch supermarket chain, founded in 1887 in Oostzaan, Netherlands. Question: AH Basic was introduced to replaced a Dutch supermarket chain founded in what year?
Output (English): 1887