Does the following sentence make sense?
"The Red Army just invaded Greenland for the warmer climate."
Options:
- yes
- no
no
The Red Army is no more now that the USSR has collapsed.

Is the following sentence factually correct?
"Immunology introduces viruses in our bodies to raise our immunes."
Options:
- yes
- no
no
Immunology is the study of the immune system and not the introduction of viruses into our bodies.

Is the following a factual statement?
"Lauren Bacall married to fellow actor Jason Robards in the 1960s."
Options:
- yes
- no
yes
The sentence is true because there are marriage records that prove it is true.

Yes / no, is the following a verifiable fact?
"Many yoga instructors consider the Paramahansa Yogananda to be among the most challenging yoga poses for novices."
no
Paramahansa Yogananda is a person, not a yoga pose.