The parameter descriptions in the EntryTypeDefinitions schema seem somewhat hard to parse and potentially misleading - this is a go at cleaning them up a bit.

It is not clear how to use ontologyTermForThisType w/o examples (i.e. terms for biosample, individual... - added some but incomplete...) and there is also a logical duplication having a "unique" id and an ontology term. Overall this should be clarified but the current modification seems (a) sensible (step).