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.

Ex Input:
Acid rain makes waters acidic. Causes them to absorb aluminum from soil. The water runs off from the soil into lakes, streams, etc. Fish and their eggs die. Frogs and plants die. Insects and other wildlife die. The ecosystem is out of balance, causing further problems.

Ex Output:
water ; acidic water ,aluminum ,fish and their eggs ,frogs and plants ,insects and other wildlife

Ex Input:
You receive a vaccination through an injection or a nasal spray. The vaccine contains a weakened version of the virus or bacteria responsible for the disease. The body's immune system reacts to the virus or bacteria. The immune system creates antibodies to fight the virus or bacteria. The antibodies remain in the body. The antibodies are ready to fight the disease if the person is infected with the disease.

Ex Output:
virus or bacteria ,antibodies

Ex Input:
A butterfly starts as an egg. The egg hatches. A larva emerges. The larva eats and grows. The larva sheds its skin. The larva enters a chrysalis. The pupa grows inside the chrysalis. The adult butterfly exits the chrysalis. The adult butterfly is now fully grown. The adult butterfly lays more eggs.

Ex Output:
egg ; eggs ,larva ,pupa ,adult butterfly