input: Please answer the following: What is the missing first step of the following process:  -  They are buried under layers of soil - Pressure builds over time - The remains liquefy - The carbon atoms rearrange to become a new substance.
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output: Plants and animals long ago died


input: Please answer the following: What is the missing first step of the following process:  -  The female lays eggs - The eggs are incubated by the parents, by sitting on them, for weeks - The bird hatches from an egg - The parents feed them as the continue to grow - Develop flight feathers - The parents teach them to fly - After learning to fly they leave the nest to live on their own - The next year they breed beginning the cycle again -
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output: A male and female bird mate


input: Please answer the following: What is the missing first step of the following process:  -  The small intestine produces hormones - The hormones cause the pancreas to produce enzymes for digestion - The enzymes travel from the pancreas to the small intestine through tubes - The enzymes help the intestines digest the food - The pancreas produces the hormones insuline and glucagon - The hormones control the amount of sugar in the blood.
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output: Food enters the small intestine


input: Please answer the following: What is the missing first step of the following process:  -  Ice inside the cloud bumps around and causes electrostatic charges - The cloud becomes a thundercloud - Electrostatic energy builds and forms a strong negative charge - Positive energy is attracted to the negative energy in the cloud - This positive energy gathers on the ground - The positive energy connects with the negative energy and forms lightning.
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output: