Here is a quote from dprview comparing two cameras:
In most circumstances the Z7’s image quality will be remarkably similar to that of the D850. However, it’s not quite fair to say it’s the same.
We can see that it is comprised of two marked clauses, both beginning with the Themes underlined. The first clause is a marked topical Theme with a prepositional phrase, but the Theme of the second clause, ‘however’, serves to link the two clauses together. This is called a textual Theme.
Textual Themes are made up of:
- Continuatives (e.g., umm, yeah, …)
- Conjunctions, either paratactic (‘linking’ e.g., and, or, but, …) or hypotactic (‘binding’ e.g. when, while, if, because, …)
- Conjunctive adjuncts, which are adverbial groups or prepositional phrases that link one part of discourse to another (e.g. in other words, actually, as a result, …).
(See SFG Page for more and better info).