Using given text as a reference, extract the composers of Color of the world separated by commas
"Colour the World" is a song by German production group Sash! featuring Nigerian-Swedish recording artist and producer Dr. Alban.

All lyrics are written by Dr. Alban, Ralf Kappmeier, Sascha Lappessen, Thomas Alisson; all music is composed by Ralph Kappmaier, Thomas Allison, Sascha Lappessen.
Ralph Kappmaier, Thomas Allison, Sascha Lappessen.