Sentence:  According to Jenny's story, everything each of us does, every decision made during each day, is indelibly marked on a lifetime <WSD>scantron</WSD> sheet in Heaven. (This, of course, made sense because it was very similar to the <WSD>scantron</WSD> sheets we filled out every day in school.) 
Meaning of the word marked with <WSD> tags:  The prepared forms used in such devices.