Does the following sentence make sense?
"Heliocentrism teaches that the planets all revolve around the sun."
Options:
- yes
- no
yes
Heliocentrism has been scientifically proven to be the standard model of orbital mechanics.

Yes / no, is the following a verifiable fact?
"Halloween occurs in the month of April."
no
Halloween is widely celebrated in October on October 31st, not during April.

Is the following statement true?
"Holiday Inn doesn't provide maid service."
no
Most hotels offer maid service and have all rooms cleaned between reservations.

"Measles do not exist in every nation."
Is the above claim true?
Options:
- yes
- no
no
Measles is an illness that can be found around the world.