Drawn below is the structure of Crestor® (rosuvastatin), a medication used to reduce cholesterol. Assign the absolute configurations of the two chirality centers as R or S. 
Definitions:
Identity
The way in which individuals perceive themselves, including beliefs, characteristics, and expressions, which contribute to their unique sense of self.
Critical Period
A specific time during development when the presence or absence of certain experiences has a profound impact on the formation of abilities or characteristics.
Accommodation
The process of adjusting one's cognitive structures to integrate new information.
Assimilation
The cognitive process by which a person integrates new ideas, experiences, or information into existing cognitive structures.
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