Does "Early reports of Europeans reaching this area include those of the Venetian Alvise Cadamosto's voyage of 1455, the 14791480 voyage by Flemish-French trader Eustache de la Fosse, and Diogo Cao." contain the correct answer to "What was the name of the Portuguese explorer?"
OPTIONS:
- yes
- no

A: yes

Does "Glass will transmit, reflect and refract light; these qualities can be enhanced by cutting and polishing to make optical lenses, prisms, fine glassware, and optical fibers for high speed data transmission by light." contain the correct answer to "What type of glass products can be used for sending information?"
OPTIONS:
- yes
- no

A: yes

Does "However, the King of Portugal remained in Brazil until the Liberal Revolution of 1820, which started in Porto, demanded his return to Lisbon in 1821." contain the correct answer to "Where did the Liberal Revolution of 1820 begin?"
OPTIONS:
- yes
- no

A:
yes