Please share this suggested wording with your legal advisor.
I give to Woodland Park Zoological Society (DBA Woodland Park Zoo), a Washington non-profit (Tax ID #91-6070005), or its successor, the sum of $___________________, for any purpose as Woodland Park Zoo deems appropriate.
I give to Woodland Park Zoological Society (DBA Woodland Park Zoo), a Washington non-profit (Tax ID #91-6070005), or its successor (the real estate located at __________________ or 1000 shares of XYZ stock), for any purpose as Woodland Park Zoo deems appropriate.
I give to Woodland Park Zoological Society (DBA Woodland Park Zoo), a Washington non-profit (Tax ID #91-6070005), or its successor, ________% of the rest of my estate, for any purpose as Woodland Park Zoo deems appropriate.