How to use "primarily" in a sentence

He was interested primarily in learning more about the mind that could create a work like Magyck! He had seen less than one-fourth of the program, yet he knew it was a hit - and far superior to others of its kind

At the craps tables, the crowds, primarily men, were more boisterous than the blackjack aficionados; they screamed, howled, cheered, groaned, encouraged the shooter, and prayed loudly to the dice

Even a primarily good government, when it's big enough, has some pretty mean sharks swimming in the darker currents