premise: Kathleen Delaney is an American actress, voice actress, singer, and dancer who works on Broadway and on the properties of 4Kids Entertainment. She is best known as the voice of Hina in the 4Kids dub of One Piece, Mai Valentine in uncut versions of "Yu-Gi-Oh!" and Rouge in "Sonic X" and the succeeding games until 2010, when she was replaced by Karen Strassman.
hypothesis: Kathleen Delaney was no longer known as a voice actress on any projects after being replaced by Karen Strassman.
reason: The context doesn't say Delaney did no more voice work after being replaced by Strassman, but I said she did.  I think the AI doesn't know there are enough voice projects in the world for both Delaney and Strassman to be working.