Teacher: Which of the following sentences is nonsensical?
Options:
- Sentence A: "a butterfly used to be an egg"
- Sentence B: "a butterfly used to be a caterpillar"

Student: Butterflies transition from caterpillars using a cocoon, not an egg.
The answer is Sentence A.

Teacher: Choose the sentence that goes against common sense.
Options:
- Sentence A: "Saying "good morning", he waved his teacher warmly at dawn when he arrived the school"
- Sentence B: "Saying "good evening", he waved his teacher warmly at dawn when he arrived the school"

Student: We don't say good evening in the morning.
The answer is Sentence B.

Teacher: Which of the following sentences is nonsensical?
Options:
- Sentence A: "Seeing is a learning task."
- Sentence B: "Singing is a learning task."

Student: Seeing is a natural sense, compared to singing which you take lessons to learn.
The answer is Sentence A.

Teacher: Of the below sentences, which one does *not* make sense?
Options:
- Sentence A: "People can ride a goat at summer"
- Sentence B: "People can ride a bike at summer"

Student:
A goat is to small to be ridden.
The answer is Sentence A.