each term has to be in its own class

[yegor256]

Current design, where we include many methods into the same Term class is ugly. Instead, we should create one class per term: terms/or.rb, terms/unique.rb, etc.

[volodya-lombrozo]

@yegor256 could you assign it to me, please?

[0pdd]

@yegor256 the puzzle #330 is still not solved.