Analyze an English sentence and talk about grammar and sentence structure.

This is a compound sentence.

Main clause They hurl their passion into their work

Concessive adverbial clause be it physical like the work of a smith, or more mental like that of a scientist or an artist (subjunctive mood , is whether it should be...an inversion after omitting whether and should)

〔Predicate verb〕be

〔Subject〕it

〔Parallel clause 〕physical like the work of a smith, or more mental like that of a scientist or an artist