Teacher: Which of the following sentences is nonsensical?
Options:
- Sentence A: "Do not be careful when using electricity"
- Sentence B: "Be careful when using electricity"

Student: Electricity would turn fatal if not handled properly.
The answer is Sentence A.

Teacher: Of the below sentences, which one does *not* make sense?
Options:
- Sentence A: "Ancient people used stoves for heating in winter."
- Sentence B: "Ancient people used ice for heating in winter."

Student: Ice is cold and do not provide heat.
The answer is Sentence B.

Teacher: Which of the following two sentences does not make sense?
Options:
- Sentence A: "People should smoke more."
- Sentence B: "People should smoke fewer."

Student: Smoking is bad for our health, so we should smoke fewer.
The answer is Sentence A.

Teacher: Pick which sentence is not logical.
Options:
- Sentence A: "A parent can teach that praying to god is good"
- Sentence B: "A parent can teach the child that praying to god is bad"

Student:
Praying is always a good thing to do.
The answer is Sentence B.