instruction:
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. 
question:
The liver takes in blood from the rest of the body. The liver uses enzymes to clean the blood. The cleaned blood is expelled. The liver creates bile from the items filtered. The liver takes energy and stores it as glycogen. The bile is sent to the intestines. 
answer:
blood ,cleaned blood ,items filtered ,bile ,energy ,glycogen 


question:
Water comes through a filter. The filter has small pores to catch pollutants. The filter will catch chlorine, heavy metals, and other chemicals. The filter allows water and mineral ions like fluoride to pass through. The water on the other side of the filter is much cleaner. 
answer:
chorine ,heavy metals ,other chemicals 


question:
A mold spore floats through the air. The spore lands on a piece of bread. The spore grows hyphae into the bread. The mold forms a colony. Sporangiophores grow upward. The mold sends out spores. 
answer:

mold spore ; spore ; mold ,colony ; sporangiophores