Exemplification. Here the secondary clause develops the thesis of the primary clause becoming more specific about it, often citing an actual example; for example We used to have races – we used to have relays. Your face is the same as everybody else has – the two eyes so, nose in the middle, mouth under. Here the explicit conjunctives are 'for example', 'for istance', 'in particular'; or, in writing, 'e.g.'.
- Halliday (1985), Pag. 203