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. 
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Question: Magma rises to the surface during a volcano. The magma undergoes changes in temperature. The magma undergoes changes in pressure. The magma cools. The magma solidifies. The magma crystallizes. Igneous rock is formed. 

Answer: magma ,igneous rock 


Question: Snow falls in an area for a very long time. The snow builds up for a very long time. The snow starts to become packed very firmly. The snow becomes something that's more like ice. Air pockets in the mass continue to grow smaller. The mass becomes solid and heavy enough to be called a glacier. The glacier moves because of gravity. 

Answer: glacier ,snow ,mass 


Question: Cold water taken in through a hose to the bottom. Heating element heats water. Pump forces water up in pipes connected to spinning paddles. The forced water makes paddles spin like a sprinkler. Water comes out of small holes in paddles. Water is collected and used again until dishes are clean. Water is drained through a filter. Filter collects particles of food. Water was so hot that it evaporates for dry dishes. 

Answer:
water ,particles of food