How to make a rustic bread<br>Assemble all of your ingredients, which are enough to make 4 or 5 loaves of rustic bread. If you want the bread to have the traditional, crunchy crust, buy 1 or 2 unglazed quarry tiles to bake it on. The ceramic absorbs the moisture, creating a crunchy crust.
You must create a crunchy crust. 
This statement is definitely incorrect, because the recipe gives you the option to create a crunchy crust if you "want." It does not say you "must." I think the machine may have missed it, because the sentence can be interpreted as personal preference. 
( z1 obligate :ARG1 ( z2 you ) :ARG2 ( z3 create :ARG0 z2 :ARG1 ( z4 crust :mod ( z5 crunchy ) ) ) )