Fact 1: Vertebrates are all chordates that have a backbone. Fact 2: Birds are warm-blooded vertebrates. Given the two facts above, what has a backbone?
OPTIONS:
- Man
- invertebrates
- humans
- insects
- toads
- birds
- plants
- bacteria

Answer: birds

Question: Fact 1: Many corals secrete an exoskeleton that builds up to become a coral reef. Fact 2: An atoll is the third type of reef. Given the two facts above, how are atolls built?
OPTIONS:
- important habitats
- By coral exoskeletons
- by fish
- with machines
- by a type of eel
- It used to be covered by water
- The area was once underwater
- reusing materials
Answer: By coral exoskeletons

input with options: Fact 1: Hibernation is used for conserving energy by some animals. Fact 2: Hibernation is a sleep-like state. Given the two facts above, what is used for conserving energy by some animals?
OPTIONS:
- hydration
- food and shelter
- bears
- breathing
- hunting
- organic molecules
- dormant state
- sleep-like state
output: sleep-like state

Q: Fact 1: Clouds are formed by water vapor rising into colder regions of the atmosphere and condensing. Fact 2: Eventually, the drops fall out of the cloud in the form of rain. Given the two facts above, what sometimes falls as rain?

OPTIONS:
- Water vapor
- Winter
- trees
- Metling snow
- earth
- soil
- flooding
- streams.

A: Water vapor

input: OPTIONS:
- bushes
- h2o
- elms
- roses
- oak
- dogs
- Spruce
- bamboo Now, answer this question: Fact 1: Trees have woody stems covered with bark. Fact 2: An elm tree is a type of tree that grows in America. Given the two facts above, what have woody stems covered with bark?
A:
output: elms

Question: Fact 1: Contact between rocks over long periods of time causes rocks to smooth. Fact 2: First, limestone is a strong rock. Given the two facts above, what causes limestone to smooth?
OPTIONS:
- contact
- coffin
- hair
- erosion
- bacon
- rainfall
- friction
- loose soil
Answer:
contact