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Here's a container for social science research data (Content Model for social science research data ) 
Here is a container for documentation about the research data object (Content Model for social science research data documentation). We used a separate object since one documentation object can apply to more than one data object. 
And, last, here is an aggregate object, typically used to hold "study"-level metadata that will have relationships to the two objects above (Content Model for social science study )
