input with options: You are presented with the quiz "What is a source of energy?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "hydropower requires damming a river" and "another source of energy is hydropower". So, what's the best answer to the question?
OPTIONS:
- fossil fuels
- cooking
- damming a river
- sleeping
- napping
- Electrical energy
- our nearest star
- sunlight
output: damming a river

input with options: You are presented with the quiz "a lawn mower converts _ into motion" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "agasoline lawn mower converts gasoline into motion" and "gasoline is made up of hydrocarbons". So, what's the best answer to the question?
OPTIONS:
- kinetic energy
- flow of electrons
- hydrocarbons
- energy
- Greenhouse gasses
- heat energy
- fossil fuels
- Greenhouse gases
output: hydrocarbons

input with options: You are presented with the quiz "Male dogs use what in their urine to mark their territory?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "male dogs use pheromones in urine to mark their territory" and "generally, pheromones are volatile substances". So, what's the best answer to the question?
OPTIONS:
- hydrocarbons
- volatile substances
- kinetic energy
- an area swollen with pus
- Chemical energy
- competing for resources
- add a solute
- Positive charges
output: volatile substances

input with options: You are presented with the quiz "What is used to protect plants by keeping their temperature?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "agreenhouse is used to protect plants by keeping them warm" and "temperatures go from warm to hot". So, what's the best answer to the question?
OPTIONS:
- a white house
- energy
- an electric stove
- a microwave
- electricity
- a thermometer
- exoskeleton
- a greenhouse
output:
a greenhouse