Not sure if this has been mentioned before, but in case someone find a use for it...
A unit can have more than one building requirement, just like buldings:
If build req. is:
"{ROYAL_COURT}"
By editing that to:
"{{ROYAL_COURT},{SWORDSMITH}}"
you can get the unit either by bulding a ROYAL_COURT or a SWORDSMITH.
Could be useful for something...
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