How to find the value of old coins<br>Pin down the coin's origin and date. You'll need to know exactly what coin you're looking at to determine its specific value. Modern coins will include a date of issue printed on the front or back of the coin itself.
Coins will have a date of issue printed on them.
This fits the category because some coins will have a date and some won't. It depends on the age and origin of the coin among other variables. I think this was difficult for the system because it was an absolute statement.
( z1 have :ARG0 ( z2 coin ) :ARG1 ( z3 print :ARG1 ( z4 date :time-of ( z5 issue ) ) :location z2 ) )