You will be given a definition of a task first, then some input of the task.
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. 

Bees find a place for the hive, such as a rock crevice or tree branch. Bees gather nectar from flowers. The bees evaporate the nectar by passing it back and forth to each other. The evaporation turns the nectar into sugary honey. The bees chew the honey until it turns into moldable wax. The bees mold the wax into hexagonal (six sided) cylinders. Thousands of these hexagonal cylinders put together form the hive. 
Output:
bees ,nectar ,honey ,wax ,cylinders ,hive 