User talk:18.111.104.155

April 2012
Hello, and welcome to Wikipedia. Although everyone is welcome to contribute to Wikipedia, at least one of your recent edits, such as the one you made to Graph (mathematics), did not appear to be constructive and has been reverted or removed. Please use your sandbox for any test edits you would like to make, and read the welcome page to learn more about contributing constructively to this encyclopedia. Thank you. Pinethicket (talk) 23:00, 26 April 2012 (UTC)