Question: Yes / no, is the following a verifiable fact?
"Epilepsy could be cured by 2019."
Ans and explanation: The answer is no.
Explanation: Because 2019 has already passed and there is no cure for epilepsy.

Question: Claim: "Leonardo DiCaprio and Kate Winslet starred in the Titanic."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
Ans and explanation: The answer is yes.
Explanation: Both of these actors had lead roles in the film.

Question: Yes / no, is the following a verifiable fact?
"Christmas Eve occurs during the summer."
Ans and explanation: The answer is no.
Explanation: Christmas Eve is the day before Christmas, which happens in December, a winter month, not a summer one.

Question: "Many Ballads can be found on Spotify."
Is the above claim true?
Options:
- yes
- no
Ans and explanation:
The answer is yes.
Explanation: Spotify has a large catalogue of music, including ballads of all kinds (rock, classical, etc.).