Q: If Of their heads., can we say that "About their heads."?

A: yes

Q: If By then it was no mystery, of course., can we say that "Of course, it wasn't a mystery by then."?

A: yes

Q: If As Wolff's dreams of undeserved riches fade into a mirage, Burn Rate becomes the journal of a loser., can we say that "The Burn Rate becomes the journal of winners."?

A: no

Q: If The Romanization of Gaul sent the most energetic warriors to defend the outposts of the empire while their families settled down to work the land or build towns such as Lyon, Orange, Arles, and N?®️mes, and the first great highways between them., can we say that "Gaul was sent energetic warriors to fight to keep the outposts safe."?

A:
it is not possible to tell