i think gaborik and Demirta and bouchard are on a line but wat are the others

It's almost hard to say because Lemaire changes the lines constantly. Gaborik-Demitra-Bouchard could be on a line one shift but then get broken up the next shift. The lines can even change from game to game. I think sometimes he does try to keep some lines the same for part of the season (such as the Belanger-Bouchard-Rolston line).

Why don't he keep Gaborik-Demitra-Rolston line??
Isn't that the strongest what they got??

its better to have 2 balanced scoring lines than 1 huge line and a bad 2nd scoring line. this way the other team's defense will have a hard time shutting down 2 lines instead of 1.