The following structure has been used in monitoring the development of amyloid plaques in Alzheimer's patients (J. Med. Chem. 2011, 949) . Which sequence correctly ranks the following nitrogens in order of increasing pKb value? 
Definitions:
Middle East
A geopolitical region centered around Western Asia and Egypt, noted for its cultural, religious, and strategic importance.
State Development
The process through which a society develops institutionalized government and structured political organization.
Forceful Leaders
Leaders characterized by strong, assertive, or domineering methods and personality traits, often influencing or directing people with vigor.
National Borders
Geographically defined boundaries that separate the territory of one state from that of another, often established through treaties and recognized in international law.
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