CopyCatch Gold
Web Search assistance (1) 
Highlighting any of the word lists shows you on the right which files have sentences with these words in common.
The idea is that where students share sentence content, these words might be useful for searching the web.
So you can see that Student 2 and Student 3 share a number of words in the highlighted sentence. Searching for those would lead you to the source, Spark Notes (named Achebe 4.txt).
To illustrate this, the web sources have been included to show the effect across a number of closely related texts.
The line below the highlighted one shows that Student 3 is very heavily dependent on the source, where Student 2 has borrowed less. [soft, violent, productive, adamantly, brave, wealthy, ideals, conversation, adopts, perceives, opposed, consciously, emotion, becomes] are found in Student 3 and Spark Notes Achebe 4.