TASK DEFINITION: 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. 
PROBLEM: The organism must die to begin the process. The soft tissue decomposes. The bones are left behind. Scavengers tear the body apart and move the bones elsewhere. Wind and rain also scatter the bones further. The bones left behind will weather and become buried by sand and soil. The proteins in the bone are replaced with minerals that are dissolved in the soil. This creates a rock-like substance called a fossil. Water and wind erosion wear away the layers of soil on top of the fossil. This makes discovery of the fossil possible. 

SOLUTION: organism ,soft tissue ,bones ,proteins ,soil ,minerals ,fossil 

PROBLEM: You speak into the receiver on your phone. Sound waves move parts inside the receiver. Movement causes the magnet inside to produce eletricity. Electricity is transferred through  a wire or cable. A membrane in the other persons phone is vibrated by the magnet in their telephone. Sound is produced. They hear you. 

SOLUTION: Speak ,Sound Waves ,Electricity ,Sound 

PROBLEM: A sperm meets an egg in the uterus of a woman. The sperm implants itself into the egg. The sperm and egg form a zygote on the wall of the uterus. The fetus grows and develops. The woman gives birth to a baby. The baby is raised by parents until it is able to take care of itself. The person goes out into the world and finds a job. The person meets other people and has a life. The person gets a career, and gets married. The person retires and eventually passes away. 

SOLUTION:
sperm ,egg ,zygote ,fetus ,baby ,person ,other people 

