user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: when did mcdonalds officially open? 
Knowledge Triplets: McDonald's, organization.organization.child, m.09pr678
McDonald's, business.sponsor.sponsorship, m.07757g4
m.04223t7, common.webpage.topic, McDonald's
McDonald's, organization.organization.child, m.09qym8h
McDonald's Restaurants - 1033 Wonderland, organization.organization.headquarters, m.012m27gr
McDonald's, organization.organization.child, m.09qk7nl
m.0v48ds6, organization.leadership.organization, McDonald's
McDonald's, organization.organization.board_members, m.09txxvy
McDonald's, organization.organization.locations, McDonald's, 3424 Bel Air Mall, Mobile, AL
m.03x7591, business.employment_tenure.company, McDonald's
McDonalds (Tianjin) Foods Co Ltd (Peoples Republic of China), organization.organization.parent, m.09pvj_7
McDonald's, business.industry.companies, McDonald's Restaurants - 675 Upper James
m.09xm9d5, common.webpage.topic, McDonald's
McDonald's Restaurants - 520 Oxford, organization.organization.headquarters, m.012m26nw
McDonald's, organization.organization.date_founded, 1940-05-15
McDonald's, business.industry.companies, McDonald's Restaurants - 1268 King
McDonald's, business.industry.companies, McDonald's Restaurants - 1185 Dupont
McDonald's Restaurants - 1165 Division, business.business_operation.industry, McDonald's
McDonald's, business.consumer_company.products, m.075zgn1
McDonald's, organization.organization.leadership, m.0v48ds6
McDonald's Restaurants - 787 Barton, organization.organization.headquarters, m.012m27_9
McDonald's, business.industry.companies, McDonald's Restaurants - 1165 Division
McDonald's Restaurants - 1787 Bayview, business.business_operation.industry, McDonald's
McDonald's Restaurants - 344 Bathurst, organization.organization.headquarters, m.012m27zh
McDonald's, organization.organization.child, m.09q5wwv
McDonald's, organization.organization.child, m.09qj407
McDonald's, common.topic.webpage, m.09xmj7q
McDonald's Restaurants - 1950 Dundas, organization.organization.phone_number, m.012m27mn
McDonald's, business.employer.employees, m.04j548b
McDonald's Franchise GmbH, organization.organization.parent, m.09r49qn
McDonald's, organization.organization.child, m.09r8c8_
McDonald's, organization.organization.child, m.09rcq78
McDonald's, organization.organization.founders, Ray Kroc
m.01xx3wq, common.webpage.topic, McDonald's
McDonald's, business.industry.companies, McDonald's Restaurants - 1033 Wonderland
McDonald's Restaurants - 385 Wellington, organization.organization.headquarters, m.012m268x
McDonalds Restaurants (Taiwan) Co Ltd (Taiwan), common.topic.notable_types, Business Operation
McDonald's, common.topic.webpage, m.09yr1rj
McDonald's, organization.organization.child, m.09qd2fy
McDonalds GmbH, common.topic.notable_types, Business Operation
McDonald's, business.industry.companies, McDonald's Restaurants - 1530 Albion
McDonald's, business.sponsor.sponsorship, m.076r468
McDonald's, business.employer.employees, m.03x754m
McDonald's Restaurants - 345 Bloor, organization.organization.headquarters, m.012m27vk
McDonald's, common.topic.webpage, m.04223t7
McDonald's, organization.organization.child, m.09rcq7l
McDonald's, common.topic.webpage, m.09xyzv_
McDonald's, organization.organization.child, m.09q6wf7
McDonald's, organization.organization.child, m.09prwz9
McDonald's, organization.organization.board_members, m.09txxwc
McDonald's, business.employer.employees, m.03x75gm
McDonald's Restaurants - 160 Spadina, organization.organization.headquarters, m.012m27wg
McDonald's, business.industry.companies, McDonald's Restaurants - 160 Spadina
McDonald's, organization.organization.child, m.0x2tn3p
McDonald's Restaurant - 1159 Highbury, organization.organization.headquarters, m.012m26h_
McDonald's, organization.organization.board_members, m.04gb0p8
McDonald's Restaurants - 533 Gardiners, organization.organization.headquarters, m.012m2881
McDonald's, business.industry.companies, McDonald's Restaurants - 710 St. Clair
McDonald's, organization.organization.locations, McDonald's, Plaza Carolina, Puerto Rico
Restaurant, business.industry.companies, McDonald's
McDonald's, organization.organization.child, m.09qs_n2
McDonald's Restaurants - 50 Dundurn, organization.organization.headquarters, m.012m27jc
McDonald's Restaurants - 1807 Eglinton, organization.organization.phone_number, m.012m281x
McDonald's, organization.organization.child, m.09phz2l
McDonald's, common.topic.webpage, m.09ybkrz
McDonald's, organization.organization.child, m.0k3f7fc
McDonald's, organization.organization.child, m.09r9qk0
McDonald's Corporation World Headquarters, base.greenbuilding.corporate_headquarters.company, McDonald's
McDonald's Restaurants - 852 Upper Gage, organization.organization.headquarters, m.012m26ff
McDonald's, business.industry.companies, McDonald's Restaurant - 20 Rymal
McDonald's, organization.organization.locations, McDonald's, Franklin Mills
McDonald's Restaurants - 285 Princess, organization.organization.headquarters, m.012m27tr
McDonald's, organization.organization.leadership, m.09t9g59
McDonald's Restaurants - 2218 Bloor, organization.organization.headquarters, m.012m27p2
McDonald's Restaurants, common.topic.notable_types, Business Operation
m.07ydpp3, award.ranking.item, McDonald's
McDonald's, organization.organization.child, m.09pxhmf
McDonald's, business.business_operation.liabilities, m.0915ntf
McDonald's, business.industry.companies, McDonald's Restaurants - 385 Wellington
McDonald's Development Company - Central Europe, common.topic.notable_types, Business Operation
McDonald's, organization.organization.child, m.09ph8b5
McDonald's, business.business_operation.revenue, m.085pvq0
McDonald's Restaurants - 2190 Rymal, organization.organization.headquarters, m.012m286n
McDonald's Restaurants - 1890 Avenue, business.business_operation.industry, McDonald's
McDonald's, organization.organization.locations, McDonald's, La Plaza Mall
McDonald's, organization.organization.child, m.09pm7ky
McDonald's, organization.organization.locations, McDonald's, Westfield Parkway
McDonald's, organization.organization.locations, McDonald's, Westfield Vancouver
McDonald's, business.sponsor.sponsorship, m.077bq55
McDonald's, business.employer.employees, m.03x7591
McDonald's Restaurants - 470 Yonge, organization.organization.headquarters, m.012m26x_
McDonald's, business.industry.companies, McDonald's Restaurants - 2658 Princess
McDonald's Restaurants - 1221 King, organization.organization.headquarters, m.012m26z_
McDonald's, common.topic.webpage, m.09y92gn
McDonald's, business.sponsor.sponsorship, m.05n95l2
McDonald's, business.industry.companies, McDonald's Restaurants - 1950 Dundas
McDonald's, business.sponsor.sponsorship, m.07759vk
McDonald's, business.sponsor.sponsorship, m.077qggh
McDonald's Restaurants - 29-31 Woodward, business.business_operation.industry, McDonald's
McDonald's Restaurant - 1159 Highbury, business.business_operation.industry, McDonald's
McDonald's, common.topic.webpage, m.09wbgfg
McDonald's, business.industry.companies, McDonald's Restaurants - 11 St. Clair
McDonald's Restaurants - 2365 Dundas, organization.organization.headquarters, m.012m27hn
McDonald's, business.sponsor.sponsorship, m.06p0rc7
McDonald's Restaurants - 959 Hamilton, organization.organization.headquarters, m.012m272x
McDonald's, organization.organization.child, m.09r0xjn
McDonald's Restaurants - 1268 King, organization.organization.headquarters, m.012m27f3
McDonald's, business.industry.companies, McDonald's Restaurants - 852 Upper Gage
McDonald's, business.sponsor.sponsorship, m.0746hkw
McDonald's, business.industry.companies, McDonald's Restaurants - 29-31 Woodward
Maurice McDonald, organization.organization_founder.organizations_founded, McDonald's
McDonald's, organization.organization.locations, McDonald's, Southridge Mall
m.09t9g5k, organization.leadership.organization, McDonald's
McDonald's Restaurants - 1787 Bayview, organization.organization.headquarters, m.012m271d
McDonald's, business.employer.employees, m.05v28kk
McDonald's, business.employer.employees, m.03x7597
McDonald's, organization.organization.locations, McDonald's, Westfield Garden State Plaza
McDonald's Restaurants - 675 Yonge, organization.organization.headquarters, m.012m27x8
McDonald's, business.employer.employees, m.03x02k1
McDonald's Restaurants - 675 Upper James, organization.organization.headquarters, m.012m28dk
McDonald's Restaurants - 1530 Albion, organization.organization.headquarters, m.012m280x
m.07ydqtb, award.ranking.item, McDonald's
McDonald's, business.business_operation.competitive_space, m.0bd54mx
McDonald's, business.sponsor.sponsorship, m.075f9z7
McDonald's, organization.organization.child, m.09pll64
McDonald's, organization.organization.locations, McDonald's, Newport Centre
McDonald's, business.employer.employees, m.04bfdv9
McDonald's Restaurants, organization.organization.parent, m.09pmxyr
McDonald's, organization.organization.locations, McDonald's, St. Charles Towne Center
McDonalds Restaurants (Shenzhen) (Peoples Republic of China), common.topic.notable_types, Business Operation
McDonald's, organization.organization.founders, Richard McDonald
McDonalds Gesellschaft m.b.H, organization.organization.parent, m.09q6wf7
Richard McDonald, organization.organization_founder.organizations_founded, McDonald's
McDonald's Restaurants - 1175 Wonderland, business.business_operation.industry, McDonald's
McDonald's, organization.organization.locations, McDonald's, Northshore Mall
McDonald's, business.industry.companies, McDonald's Restaurants - 120 King
McDonald's Restaurants - 120 King, organization.organization.headquarters, m.012m27p_
McDonald's, organization.organization.child, m.09pzj46
McDonald's, business.industry.companies, McDonald's Restaurants - 345 Bloor
McDonald's, common.topic.webpage, m.09xm9d5
McDonald's, organization.organization.child, m.09q3wrr
McDonald's, organization.organization.leadership, m.09t9g61
McDonald's, business.employer.employees, m.03x75bc
McDonald's, dining.restaurant.cuisine, American food
m.09t9g59, organization.leadership.organization, McDonald's
McDonald's Restaurants - 1890 Avenue, organization.organization.headquarters, m.012m26h2
McDonald's, organization.organization.leadership, m.09t9g5k
McDonald's, organization.organization.locations, McDonald's, Lakeforest Mall
McDonald's, business.industry.companies, McDonald's Restaurants - 1890 Avenue
McDonald's Immobilien GmbH, organization.organization.parent, m.09qj407
McDonald's Restaurants - 462 Wharncliffe, organization.organization.headquarters, m.012m26l3
McDonalds Restaurants (Taiwan) Co Ltd (Taiwan), organization.organization.parent, m.09qrphc
McDonald's Deutschland, Inc, organization.organization.parent, m.09r7mkx
m.09xw16w, common.webpage.topic, McDonald's
McDonald's, organization.organization.child, m.09qx9hy
McDonald's, business.employer.employees, m.03x75h5
McDonald's Israel, business.business_operation.industry, Fast food
McDonald's, business.brand.owner_s, m.0w4hmrf
m.04dy392, business.employment_tenure.company, McDonald's
McDonald's Restaurants - 1185 Dupont, organization.organization.headquarters, m.012m275p
McDonald's Restaurants - 1807 Eglinton, business.business_operation.industry, McDonald's
McDonalds International Property Co Ltd, common.topic.notable_types, Business Operation
McDonald's, business.sponsor.sponsorship, m.075ympf
McDonald's, organization.organization.child, m.09qhb4_
McDonald's, organization.organization.child, m.09rc171
McDonald's Restaurants - 1168 St. Clair, organization.organization.headquarters, m.012m27sw
McDonald's, business.industry.companies, McDonald's Restaurants - 1168 St. Clair
McDonald's Restaurants - 1175 Wonderland, organization.organization.headquarters, m.012m27y1
McDonald's, organization.organization.child, m.09qpqr6
Restaurantes McDonalds S.A., organization.organization.parent, m.09qcd5z
McDonald's, organization.organization.child, m.09qwmt5
m.04j548b, business.employment_tenure.company, McDonald's
McDonald's, common.topic.webpage, m.0b6rn7y
McDonald's, business.industry.companies, McDonald's Restaurants - 1175 Wonderland
McDonald's, business.business_operation.current_assets, m.0915nv9
McDonald's, business.business_operation.assets, m.0915ntw
McDonald's, business.employer.employees, m.03x755y
McDonalds Liegenschaftsverwaltung Gesellschaft m.b.H., common.topic.notable_types, Business Operation
McDonald's USA, organization.organization.parent, m.09pr678
McDonald's, organization.organization.child, m.09p_67y
McDonalds International Property Co Ltd, organization.organization.parent, m.09q3700
McDonald's, business.industry.companies, McDonald's Restaurants - 1735 Danforth
McDonald's, organization.organization.child, m.09r7ml9
McDonald's, organization.organization.locations, McDonald's, Westfield Great Northern
McDonald's, business.employer.employees, m.04bfdyd
McDonald's, organization.organization.locations, McDonald's, Oxford Valley Mall
McDonald's Restaurants - 1735 Danforth, organization.organization.headquarters, m.012m26yq
McDonald's, organization.organization.locations, McDonald's, Westfield Meriden
McDonald's, business.sponsor.sponsorship, m.075zlk2
McDonald's Restaurants - 1890 Avenue, organization.organization.phone_number, m.012m26hb
McDonald's, organization.organization.child, m.09q3700
McDonald's, organization.organization.board_members, m.03x6v57
m.09t9g61, organization.leadership.organization, McDonald's
McDonald's, organization.organization.child, m.09r49qn
McDonald's, business.industry.companies, McDonald's Restaurants - 675 Yonge
McDonald's USA, common.topic.notable_types, Business Operation
McDonald's, organization.organization.headquarters, m.09rzhh9
m.09yr1rj, common.webpage.topic, McDonald's
McDonald's, organization.organization.locations, McDonalds, White Rose Centre
McDonald's, organization.organization.child, m.09r078m
McDonald's Restaurants - 10 The Queensway, organization.organization.headquarters, m.012m2804
McDonalds Restaurants (Hong Kong) Ltd (Hong Kong), common.topic.notable_types, Business Operation
McDonald's, business.industry.companies, McDonald's Restaurants - 1807 Eglinton
McDonald's, organization.organization.child, m.09pqjrf
m.04bfdv9, business.employment_tenure.company, McDonald's
m.063m0lq, architecture.ownership.structure, McDonald's Corporation World Headquarters
McDonald's, business.industry.companies, McDonald's Restaurants - 1221 King
McDonald's, business.business_operation.revenue, m.0915nv2
McDonald's, business.industry.companies, McDonald's Restaurants - 470 Yonge
McDonald's Restaurants - 2 Ingram, organization.organization.headquarters, m.012m26lp
McDonald's, organization.organization.locations, McDonald's, DeSoto Square
McDonald's, organization.organization.locations, McDonald's, Meadowood Mall
McDonald's, organization.organization.locations, McDonald's, Liberty Tree Mall
McDonald's, organization.organization.board_members, m.03x4f8m
m.0b6rn7y, common.webpage.topic, McDonald's
McDonald's, organization.organization.child, m.09qnb63
m.09rc171, organization.organization_relationship.child, McDonalds Restaurants (Hong Kong) Ltd (Hong Kong)
McDonald's, organization.organization.leadership, m.0v48f7c
McDonald's, business.employer.employees, m.04dy392
McDonald's, organization.organization.locations, McDonald's, Ingram Park Mall
McDonald's, business.industry.companies, McDonald's Restaurants - 533 Gardiners
McDonald's, business.sponsor.sponsorship, m.076rlbt
McDonald's Restaurants - 1735 Danforth, business.business_operation.industry, McDonald's
McDonald's, business.employer.employees, m.04dy39j
McDonald's, organization.organization.locations, McDonald's, Westland Mall
McDonald's China Investment Company, organization.organization.parent, m.09prwz9
McDonald's Franchise GmbH, common.topic.notable_types, Business Operation
McDonald's, business.brand.products, McDonald's Hotcakes and Sausage
McDonald's, business.sponsor.sponsorship, m.0761s0c
McDonald's, business.business_operation.current_liabilities, m.0915ntn
McDonald's, common.topic.webpage, m.0chn0ht
McDonald's, business.business_operation.operating_income, m.03xgmpm
McDonald's, common.topic.image, Logo
McDonald's, organization.organization.child, m.09qsbt9
McDonald's, organization.organization.locations, McDonald's, Walt Whitman Mall
McDonald's Restaurant Operations Inc, organization.organization.parent, m.09qd2fy
McDonald's, organization.organization.child, m.09r7mkx
McDonald's, business.sponsor.sponsorship, m.0746f6p
McDonalds Restaurants (Shenzhen) (Peoples Republic of China), organization.organization.parent, m.09pll64
McDonald's, business.sponsor.sponsorship, m.075sk1l
McDonald's Development Company - Central Europe, organization.organization.parent, m.09pww00
McDonald's, organization.organization.board_members, m.09txxx7
McDonald's, organization.organization.locations, McDonald's, Tacoma Mall
McDonald's, business.business_operation.industry, Restaurant
McDonald's, organization.organization.child, m.09pmxyr
McDonald's Corporation World Headquarters, architecture.structure.owner, m.063m0lq
m.09ybkrz, common.webpage.topic, McDonald's
McDonald's System of France Inc, organization.organization.parent, m.09qp053
m.09xmj7q, common.webpage.topic, McDonald's
McDonald's, organization.organization.child, m.09qcd5z
McDonald's, business.industry.companies, McDonald's Restaurants - 1787 Bayview
McDonald's, business.business_operation.revenue, m.03xgmpd
McDonalds Restaurants (Hong Kong) Ltd (Hong Kong), organization.organization.parent, m.09rc171
McDonald's, organization.organization.child, m.09pw5_4
McDonald's, freebase.valuenotation.is_reviewed, Date founded
McDonald's Restaurants - 29-31 Woodward, organization.organization.headquarters, m.012m278_
McDonald's Deutschland, Inc, common.topic.notable_types, Business Operation
McDonald's, organization.organization.board_members, m.09tmylw
McDonald's, organization.organization.leadership, m.09t9g5t
McDonald's, business.sponsor.sponsorship, m.075xkz5
McDonald's, organization.organization.locations, McDonald's Ocean Ave. SF
McDonald's, organization.organization.child, m.09pk86y
McDonald's, organization.organization.child, m.09qqc6l
McDonald's, organization.organization.child, m.09qtp3v
McDonald's, business.business_operation.net_profit, m.085pvr4
McDonald's Restaurants - 1787 Bayview, organization.organization.phone_number, m.012m271w
McDonald's, organization.organization.locations, McDonald's, Westfield Santa Anita
McDonalds GmbH, organization.organization.parent, m.09rcq78
m.04bfdyd, business.employment_tenure.company, McDonald's
McDonald's, business.employer.employees, m.03x75pt
McDonald's, organization.organization.child, m.09r49q_
McDonald's, organization.organization.child, m.09qxzz_
McDonald's, business.employer.employees, m.04j764b
McDonalds Restaurants (New Zealand) Ltd (New Zealand), common.topic.notable_types, Business Operation
McDonald's, organization.organization.locations, McDonald's, Mall of Georgia
McDonald's Restaurants - 1950 Dundas, organization.organization.headquarters, m.012m27md
McDonald's Korea, business.business_operation.industry, Restaurant
McDonald's, business.brand.products, McDonald's, Big Breakfast
McDonald's, organization.organization.locations, McDonald's, Hilltop Mall
McDonald's, business.industry.companies, McDonald's Restaurants - 121 Front
McDonald's Restaurants - 330 Clarke, organization.organization.headquarters, m.012m2831
McDonald's, organization.organization.founders, Maurice McDonald
McDonald's, business.customer.supplier, Exclaimer
McDonald's, business.sponsor.sponsorship, m.076r7fv
McDonald's, organization.organization.child, m.09pvj_7
McDonald's, business.business_operation.revenue, m.085pvq9
McDonald's, organization.organization.child, m.09pc77n
Ray Kroc, organization.organization_founder.organizations_founded, McDonald's
McDonald's, business.sponsor.sponsorship, m.073z07y
McDonald's, organization.organization.child, m.09q2jx2
McDonald's, organization.organization.leadership, m.0v48fhn
McDonald's, business.business_operation.industry, Eating and Drinking Places
McDonald's Restaurants - 1045 Pape, organization.organization.headquarters, m.012m276l
McDonald's, organization.organization.child, m.09qp053
McDonald's, common.topic.webpage, m.01xx3wq
McDonald's, organization.organization.locations, McDonald's, Fashion Square Mall, Saginaw, MI
McDonald's, organization.organization.locations, McDonald's, Westfield Wheaton
McDonald's, organization.organization.locations, McDonald's, Castleton Square
McDonald's, organization.organization.board_members, m.03x6jmt
McDonalds (Tianjin) Foods Co Ltd (Peoples Republic of China), common.topic.notable_types, Business Operation
McDonald's, organization.organization.child, m.09qrphc
McDonald's Restaurants - 710 St. Clair, organization.organization.headquarters, m.012m27g0
McDonald's, business.business_operation.cash, m.0915nvp
McDonald's, business.employer.employees, m.03x754f
McDonald's, business.business_operation.net_profit, m.085pvqv
McDonald's Restaurants - 121 Front, business.business_operation.industry, McDonald's
McDonald's, business.sponsor.sponsorship, m.075slzl
McDonald's, common.topic.article, m.07gypk
McDonald's, business.business_operation.retained_earnings, m.0915nwt
McDonald's, organization.organization.locations, McDonald's, Montgomery Mall
m.09qrphc, organization.organization_relationship.child, McDonalds Restaurants (Taiwan) Co Ltd (Taiwan)
McDonald's, common.topic.webpage, m.09xw16w
McDonald's, organization.organization.locations, McDonalds, St. John's Shopping Centre
McDonald's, business.sponsor.sponsorship, m.0776p2y
McDonald's, organization.organization.locations, McDonald's, Fashion Valley Mall
McDonald's, organization.organization.locations, McDonald's, Great Mall
McDonalds Restaurants (New Zealand) Ltd (New Zealand), organization.organization.parent, m.09qhb4_
McDonald's, organization.organization.locations, McDonald's, Mall of New Hampshire
McDonald's, organization.organization.locations, McDonald's, The Galleria at White Plains
McDonald's, organization.organization.child, m.09q2jww
m.063m0lq, architecture.ownership.owner, McDonald's
McDonald's, business.sponsor.sponsorship, m.077r22s
McDonald's, common.topic.webpage, m.09yt8t6
McDonald's, common.topic.notable_for, g.125bbbcgm
McDonald's Central Europe GmbH, organization.organization.parent, m.09qpqr6
m.09yt8t6, common.webpage.topic, McDonald's
McDonald's, organization.organization.locations, McDonald's, 7530 Pershing Boulevard
McDonald's, organization.organization.locations, McDonald's, Valley West Mall, West Des Moines, IA
McDonald's Restaurant - 20 Rymal, organization.organization.headquarters, m.012m27b2
McDonald's, business.industry.companies, McDonald's Restaurants - 462 Wharncliffe
McDonald's Restaurants - 181 Bay, organization.organization.headquarters, m.012m27qq
McDonald's Restaurants - 1735 Danforth, organization.organization.phone_number, m.012m26yz
McDonald's, business.industry.companies, McDonald's Restaurant - 1159 Highbury
m.03x7597, business.employment_tenure.company, McDonald's
McDonald's, organization.organization.board_members, m.09txxw4
McDonald's Restaurants - 121 Front, organization.organization.headquarters, m.012m282c
McDonald's, organization.organization.child, m.09q9h0g
McDonald's, organization.organization.locations, McDonald's, Westfield Plaza Camino Real
McDonald's, organization.organization.child, m.09r8c8p
McDonald's Restaurants - 1950 Dundas, business.business_operation.industry, McDonald's
McDonald's, business.industry.companies, McDonald's Restaurants - 520 Oxford
McDonald's Restaurants - 1165 Division, organization.organization.headquarters, m.012m2773
McDonald's, organization.organization.child, m.010_4blv
McDonald's, business.employer.employees, m.04vynsp
McDonald's, organization.organization.locations, McDonald's, Stoneridge Shopping Center
McDonald's, business.industry.companies, McDonald's Restaurants - 2218 Bloor
McDonald's Restaurants - 630 Keele, organization.organization.headquarters, m.012m27ys
McDonald's, business.sponsor.sponsorship, m.076rxgw
McDonald's, organization.organization.child, m.09psjp6
McDonald's, organization.organization.locations, McDonald's, Markland Mall
m.0v48fhn, organization.leadership.organization, McDonald's
McDonald's, business.industry.companies, McDonald's Restaurant - 970 Upper Wentworth
McDonald's, organization.organization.locations, McDonald's, Stanford Shopping Center
McDonald's, organization.organization.child, m.09q1w7w
McDonald's, organization.organization.date_founded, 1940-05-15
McDonalds Development Italy Inc, organization.organization.parent, m.09r0xjn
McDonalds Gesellschaft m.b.H, common.topic.notable_types, Business Operation
McDonald's Restaurants - 2658 Princess, organization.organization.headquarters, m.012m2857
m.09y92gn, common.webpage.topic, McDonald's
McDonald's, common.topic.webpage, m.0b486yp
McDonald's, business.business_operation.net_profit, m.0915nt6
McDonald's, organization.organization.board_members, m.09txxx0
McDonald's China Development Company, organization.organization.parent, m.09q2jww
McDonald's Restaurants - 11 St. Clair, organization.organization.headquarters, m.012m27s4
McDonald's, business.consumer_company.brands, m.0w4hmrf
McDonald's Restaurant - 970 Upper Wentworth, organization.organization.headquarters, m.012m284j
McDonald's Restaurants - 109 McCaul, organization.organization.headquarters, m.012m283t
McDonald's Central Europe GmbH, common.topic.notable_types, Business Operation
McDonalds Liegenschaftsverwaltung Gesellschaft m.b.H., organization.organization.parent, m.09qnb63
McDonald's, organization.organization.board_members, m.09txxwl
McDonald's Restaurants - 151 Dundas, organization.organization.headquarters, m.012m27rf
McDonald's Restaurants - 1807 Eglinton, organization.organization.headquarters, m.012m281m
McDonald's, organization.organization.child, m.09pww00
McDonald's, organization.organization.child, m.0ngrpjg
McDonald's, business.business_operation.industry, Fast food
McDonald's, organization.organization.child, m.09q370b

Answer: 1940-05-15