Simplify the following text for a Grade 13 native English-speaking person.
Original: This template 's usage is simple , after a passage of text in a given article that appears to be original research one simply tacks on ( note : the `` r '' must be lowercase ) to specify that particular passage as likely being of questionable origin .
Simplified: This template 's usage is simple , after a passage of text in a given article that appears to be original research one simply tacks on to specify that particular passage as likely being of questionable origin .