My Regex
$Return = preg_replace('/(?<=,)[,\s]+/', ' ', $Return);
What I supply
Newspaper: Music Examination Results
At the October examinations of the Musical Society of Victoria Students presented by Mrs Ormsby, Campbell street, Camperdown, were again successful. The following is a list of those who gained their certificates: Intermediate, name, , , , .[Sources] [Notes]
My Results
gained their certificates: Intermediate, name, , , , .[Sources] [Notes]
What i expect
gained their certificates: Intermediate, name.[Sources] [Notes]