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Here I've recopied the grammar.
I've abbreviated the non-terminals a bit.
Subject became subj, and probably whether or not these are upper
or lower case has been a little iffy.
Let's allow all of those details for now.
I don't care about case.
We just care about the concepts in grammar.
And now down here I've written 6 possible utterances:
students think, teachers write, plus 4 more.
It's quiz time.
In this multiple, multiple choice quiz,
I'd like you to identify which of these 6 utterances
could be derived using this grammar starting from sentence.
And again, don't worry about exact spelling or upper or lower case.