Question: Is the following a factual statement?
"Sand cleans teeth as well as toothpaste."
Options:
- yes
- no
Ans and explanation: The answer is no.
Explanation: Using sand in place of toothpaste is likely to damage teeth whereas toothpaste is specifically designed to clean teeth.

Question: Is the following sentence factually correct?
"The three Cs of connoisseurship as contrast, cells, and carat weight, grade the Emerald like all colored gemstones."
Options:
- yes
- no
Ans and explanation: The answer is no.
Explanation: The four Cs of connoisseurship as color, clarity, cut and carat weight are used to grade the Emerald and other colored gemstones.

Question: Is the following a factual statement?
"Antonin Scalia acted as a Supreme Court Justice in the United States justice system."
Options:
- yes
- no
Ans and explanation: The answer is yes.
Explanation: Antonin Scalia was a Justice up until his death.

Question: Does the following sentence make sense?
"The Electron has an enormous mass and energy that is responsible for sudden shifts in earth's gravitational alignment."
Options:
- yes
- no
Ans and explanation:
The answer is no.
Explanation: The electron is smaller then an atom and a single one exerts no forces that would alter the movement of the earth in any way.