Differences

"Hey Riya, do you know which one is better: the water from the natural sources in the world or the one transformed from the magic core?" Amelia suddenly asked.

RIya heard this and arched her eyebrows. "Why do you ask?"

"Because brother said that this magic core will be prioritized for us to use instead of the people outside, so I figured out that this should be somewhat better. But I can't really understand how it's better than ordinary water," Amelia replied. 

The test result came that it was water.

Well, not exactly pure h2o but the mix within it was the components that was usually found in ordinary water they drank. 

So Amelia was a bit curious about how this water was better.