Question: Is the following sentence factually correct?
"Ocean sunfish produces poisonous gases which are harmful to other kinds of sea animals."
Options:
- yes
- no

Let me think..... This sentence is not true because the Ocean sunfish hasn't been proven to produce any harmful gases. The answer is no.

Question: Claim: "Spinach grows underground with no access to light."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no

Let me think..... Spinach is a plant and requires sunlight to photosynthesize and grow. The answer is no.

Question: Is the following a factual statement?
"Measles cases in the United States have increased since the 1940's."
Options:
- yes
- no

Let me think..... Cases of measles has decreased since the 1940's. The answer is no.

Question: Is the following statement true?
"Hello is an English greeting word and phrase."
Let me think..... You can look it up on the dictionary. The answer is yes.