ctranslation: HELLO WORLD, hello world
ctranscription: HELLO WORLD, hello world
cmark: HELLO WORLD, hello world
ccommentary: HELLO WORLD, hello world
cexample: HELLO WORLD, hello world
csecondarycontent: HELLO WORLD, hello world
cmultimedia: HELLO WORLD, hello world
cstress: HELLO WORLD, hello world
cff: HELLO WORLD, hello world
cdirectcolor/blue: HELLO WORLD, hello world