Registered and Sub- Registered word

let's see some few example related with register and sub register:-

1) register
                 Dance

sub register
                   hip hop, robotics, breack dance, salsa.

2) register
               indian food

sub register
                      gujrati food, punjabi food, sauth indian,

3) register
                   movies

sub register
                     comedy, horror, love story, history.

4) register
                 samsung

sub register
                    smart phone, t.v, watches.