The lcFeedback element was deprecated in DITA version 1.3. It was replaced with the lcFeedback2 element. It was originally intended to provide information to the learner about a correct or incorrect response in an assessment interaction.
See appendix for information about this element in OASIS document type shells.
+ topic/p learningInteractionBase-d/p learning-d/lcFeedback
. . . <lcFeedback>Yes, look to the East.</lcFeedback> . . .