You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Since what year has the team for which Luís Figo won 127 caps been in competition?" whose answer is 1921.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did portugal first participate in the world cup
Useful Output:

Doc 1: Qualifying finally began on March 21 when most of the European teams who are not in UEFA Nations League (UNL) action played their first matches.
Doc 2: This was the first time that Portugal was playing in a World Cup as they joined FIFA in 1932. The stadium of the national team of Portugal is
Doc 3: Portugal's first-ever appearance in a major football tournament was at the 1966 FIFA World Cup held in England. As many as 16 teams from four confederations
Doc 4: This is to commemorate the first World Cup final in 1930, where hosts Uruguay beat Argentina 4-2 at the Estadio Centenario in Montevideo.
Doc 5: Portugal's first participation in a major tournament finals, at the 1966 FIFA World Cup, saw a team featuring famed striker Eusébio finish in third place.