Prepare align by adding `label` to table and crawl entities based on `ontology class`.

I added labels in order to align graphs easier.
`tvtropes` uses name as plain text in English, so I decided to use English label.

In addition, I started to crawl entities which are belong to `ontology class`, such as `Artist`, `Film` ... and so on.
Okay, it isn’t a reason why you *wanted* to match names so, but why they were made to be matched.  I say, why you *wanted* so that.  Your code doesn’t automatically match those names at runtime i.e. reflection, metaprogramming at all.  What does matching names give us?