**Q**
Is the following sentence factually correct?
"The Respiratory system contain non-essential organs of the human body."
Options:
- yes
- no
**A**
no
The respiratory system contains the lungs which we need to live.

**Q**
Is the following statement true?
"Prairie dog bite everything in sight."
**A**
no
My sentence is false because it is not necessarily true, as there is no evidence that it is true. There is not a study or experiment or statistics that prove this claim to be true.

**Q**
Claim: "Boron forms unstable covalently bonded molecular networks and differ from Carbon in this nature."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
**A**
no
Boron is similar to carbon in its capability to form stable covalently bonded molecular networks.