In this task, you are given a paragraph, and your job is to generate comma-separated entities present in the given paragraph. Generate entities from a given passage in such a way that (i) they are present in the paragraph, (ii) they are non-duplicate, (iii) they underwent a state change during the process. Avoid creating entities that (i) aren't present in the process paragraph and (ii) aren't significant. 

Q: There is a fetus in the womb. They are born and are a baby. The baby grows into a child. Puberty turns the child into an adolescent. The adolescent becomes an adult. An adult becomes an elderly person. The elderly person dies. 

A: fetus ,baby ,child ,adolescent ,adult ,elderly person 
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Q: A frog lays eggs in the water. Tadpoles develop inside of the eggs. The eggs hatch. The tadpoles eat and grow. The tadpoles grow legs and form into frogs. The frogs leave the water. 

A: frogs ,tadpoles ,eggs ,legs 
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Q: Build a satellite. Attach a rocket. Add rocket fuel. Launch rocket. Satellite goes into orbit. 

A:
satellite ,rocket ,rocket fuel 
****