Question: When do purple martins migrate to the continent on which the largest country won the 2002 World Cup in Japan?

full_context: Document 1: Purple martin: The purple martin migrates to the Amazon basin in winter. Its winter range extends into Ecuador but does not seem to ascend far up the Andean foothills.
Document 2: Bird migration: Within a species not all populations may be migratory; this is known as "partial migration". Partial migration is very common in the southern continents; in Australia, 44% of non-passerine birds and 32% of passerine species are partially migratory. In some species, the population at higher latitudes tends to be migratory and will often winter at lower latitude. The migrating birds bypass the latitudes where other populations may be sedentary, where suitable wintering habitats may already be occupied. This is an example of leap-frog migration. Many fully migratory species show leap-frog migration (birds that nest at higher latitudes spend the winter at lower latitudes), and many show the alternative, chain migration, where populations 'slide' more evenly north and south without reversing order.
Document 3: Languages of Brazil: Portuguese is the official language of Brazil, and is widely spoken by most of population. Brazilian Sign Language is also an official language. Minority languages include indigenous languages and languages of more recent European and Asian immigrants. The population speaks or signs approximately 210 languages, of which 180 are indigenous. Less than forty thousand people actually speak any one of the indigenous languages in the Brazilian territory.
Document 4: José Antunes Sobrinho: Brasília (Portuguese pronunciation: [bɾaˈziljɐ]) is the federal capital of Brazil and seat of government of the Federal District. The city is located atop the Brazilian highlands in the country's center-western region. It was founded on April 21, 1960, to serve as the new national capital. Brasília and its metro (encompassing the whole of the Federal District) had a population of 2,556,149 in 2011, making it the 4th most populous city in Brazil. Among major Latin American cities, Brasília has the highest GDP per capita at R$61,915 (US$36,175).
Document 5: 2006 FIFA World Cup: 2006 FIFA World Cup FIFA Fußball - Weltmeisterschaft Deutschland 2006 2006 FIFA World Cup official logo Eine Zeit, um Freunde zu finden (A time to make friends) Tournament details Host country Germany Dates 9 June -- 9 July Teams 32 (from 6 confederations) Venue (s) 12 (in 12 host cities) Final positions Champions Italy (4th title) Runners - up France Third place Germany Fourth place Portugal Tournament statistics Matches played 64 Goals scored 147 (2.3 per match) Attendance 3,359,439 (52,491 per match) Top scorer (s) Miroslav Klose (5 goals) Best player Zinedine Zidane Best young player Lukas Podolski Best goalkeeper Gianluigi Buffon Fair play award Brazil Spain ← 2002 2010 →
Document 6: South America: Brazil is the largest country in South America, encompassing around half of the continent's land area and population. The remaining countries and territories are divided among three regions: The Andean States, the Guianas and the Southern Cone.
Document 7: 2006 FIFA World Cup: 2006 FIFA World Cup FIFA Fußball - Weltmeisterschaft Deutschland 2006 2006 FIFA World Cup official logo Eine zeit, um freunde zu finden (A time to make friends) Tournament details Host country Germany Dates 9 June -- 9 July Teams 32 (from 6 confederations) Venue (s) 12 (in 12 host cities) Final positions Champions Italy (4th title) Runners - up France Third place Germany Fourth place Portugal Tournament statistics Matches played 64 Goals scored 147 (2.3 per match) Attendance 3,359,439 (52,491 per match) Top scorer (s) Miroslav Klose (5 goals) Best player Zinedine Zidane Best young player Lukas Podolski Best goalkeeper Gianluigi Buffon ← 2002 2010 →
Document 8: Purple martin: Wintering in South America, purple martins migrate to North America in spring to breed. Spring migration is somewhat staggered, with arrivals in southern areas such as Florida and Texas in January, but showing up in the northern United States in April and in Canada as late as May. Males usually arrive at a site before females.
Document 9: 2002 FIFA World Cup Final: The 2002 FIFA World Cup Final was a football match that took place on 30 June 2002 at the International Stadium in Yokohama to determine the winner of the 2002 FIFA World Cup. The final was contested by Germany and Brazil. It was the first World Cup meeting between the two sides. Brazil won the match 2–0, winning a record fifth title. Ronaldo, who became the record World Cup goalscorer at the 2006 tournament, scored two of his fifteen World Cup goals in the second half of the match, leading Brazil to the title and winning the Golden Boot award. It also marked Brazilian captain Cafu's third consecutive appearance in a World Cup Final, a feat that has yet to be accomplished by any other player in the history of the tournament. Both teams had won their respective groups before advancing to the knockout stage, where Germany shut out all of their opponents to reach the final, while Brazil only allowed a single goal from England. Germany overcame United States and co-host South Korea, while Brazil knocked out England and Turkey.
Document 10: Bird migration: Many of the smaller insectivorous birds including the warblers, hummingbirds and flycatchers migrate large distances, usually at night. They land in the morning and may feed for a few days before resuming their migration. The birds are referred to as passage migrants in the regions where they occur for short durations between the origin and destination.
Document 11: Geography of Brazil: The country of Brazil occupies roughly half of South America, bordering the Atlantic Ocean. Brazil covers a total area of 8,514,215 km (3,287,357 sq mi) which includes 8,456,510 km (3,265,080 sq mi) of land and 55,455 km (21,411 sq mi) of water. The highest point in Brazil is Pico da Neblina at 2,994 m (9,823 ft). Brazil is bordered by the countries of Argentina, Bolivia, Colombia, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela, and France (overseas department of France, French Guiana).
Document 12: 2002 FIFA World Cup: The 2002 FIFA World Cup was the 17th staging of the FIFA World Cup which took place from 31 May to 30 June 2002 in South Korea and Japan. This world cup set a number of precedents. It was the first World Cup to be held in Asia. No previous World Cup was held on a continent other than Europe or the Americas. It was also the first World Cup to be jointly hosted by more than one nation. Finally, this was the last event to use the golden goal rule. Brazil won the tournament for a record fifth time, winning the final against Germany 2 -- 0. The victory meant Brazil qualified for the 2005 FIFA Confederations Cup for the fifth time, representing the World. In the third place play - off match against South Korea, Turkey won 3 -- 2 taking third place in only their second ever FIFA World Cup finals. China PR, Ecuador, Senegal and Slovenia made their first appearances at the finals.
Document 13: 2002 FIFA World Cup: 2002 FIFA World Cup 2002 FIFA 월드컵한국 / 일본 2002 FIFA Woldeu Keob Hanguk / Ilbon 2002 FIFA ワールドカップ韓国 / 日本 2002 FIFA Waarudo Kappu Kankoku / Nihon 2002 FIFA World Cup official logo Tournament details Host countries South Korea Japan Dates 31 May -- 30 June Teams 32 (from 5 confederations) Venue (s) 20 (in 20 host cities) Final positions Champions Brazil (5th title) Runners - up Germany Third place Turkey Fourth place South Korea Tournament statistics Matches played 64 Goals scored 161 (2.52 per match) Attendance 2,705,197 (42,269 per match) Top scorer (s) Ronaldo (8 goals) Best player Oliver Kahn Best young player Landon Donovan Best goalkeeper Oliver Kahn Fair play award Belgium ← 1998 2006 →
Document 14: Brazil: Brazil (Portuguese: Brasil Portuguese pronunciation: (bɾaˈziw)), officially the Federative Republic of Brazil (Portuguese: República Federativa do Brasil, listen (help info)), is the largest country in both South America and Latin America. At 8.5 million square kilometers (3.2 million square miles) and with over 208 million people, Brazil is the world's fifth - largest country by area and the sixth most populous. The capital is Brasília, and the most populated city is São Paulo. The federation is composed of the union of the 26 states, the Federal District, and the 5,570 municipalities. It is the largest country to have Portuguese as an official language and the only one in the Americas; it is also one of the most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world.
Document 15: Bird migration: The typical image of migration is of northern landbirds, such as swallows (Hirundinidae) and birds of prey, making long flights to the tropics. However, many Holarctic wildfowl and finch (Fringillidae) species winter in the North Temperate Zone, in regions with milder winters than their summer breeding grounds. For example, the pink-footed goose Anser brachyrhynchus migrates from Iceland to Britain and neighbouring countries, whilst the dark-eyed junco Junco hyemalis migrates from subarctic and arctic climates to the contiguous United States and the American goldfinch from taiga to wintering grounds extending from the American South northwestward to Western Oregon. Migratory routes and wintering grounds are traditional and learned by young during their first migration with their parents. Some ducks, such as the garganey Anas querquedula, move completely or partially into the tropics. The European pied flycatcher Ficedula hypoleuca also follows this migratory trend, breeding in Asia and Europe and wintering in Africa.
ground_truth: winter
sub_queries: who won the 2002 world cup in japan Answer: Brazil (
Brazil ( is the largest country on which continent Answer: South America
when do purple martins migrate to South America Answer: winter