20. The system of claim 1 , wherein each of the assertions of the plurality of individual assertions of the one or more master multi-relational ontologies is associated with one or more pieces of evidence underlying the plurality of assertions, each piece of evidence being associated with a data source from a plurality of data sources, wherein each of one or more users are associated with access rights to the plurality of data sources, and wherein one or more of the path-finding constraints or the expansion parameters include the access rights of at least one of the one or more users, such that one or more of the subset of individual assertions or the redacted subset of assertions includes only assertions supported by evidence associated with data sources to which the at least one of the one or more users has access rights.
20. The system of claim 1 , wherein each of the assertions of the plurality of individual assertions of the one or more master multi-relational ontologies is associated with one or more pieces of evidence underlying the plurality of assertions, each piece of evidence being associated with a data source from a plurality of data sources, wherein each of one or more users are associated with access rights to the plurality of data sources, and wherein one or more of the path-finding constraints or the expansion parameters include the access rights of at least one of the one or more users, such that one or more of the subset of individual assertions or the redacted subset of assertions includes only assertions supported by evidence associated with data sources to which the at least one of the one or more users has access rights. 21. The system of claim 20 , wherein the export module further outputs at least one of the one or more pieces of evidence associated with the redacted subset of assertions, wherein only the pieces of evidence associated with the data sources to which the user has access rights is output.