Meaning of oslc.pageSize

http://open-services.net/bin/view/Main/OslcCoreSpecification?sortcol=table;table=up#Resource_Paging says:

"A client can also request paging by adding the "key=value" pair oslc.pageSize to the query string component of the resource URI. By adding this, a client requests that the server respond with a specific number of property values. For example, oslc.pageSize=20 indicates to the server that the client would like 20 values per page. OSLC Services MAY ignore oslc.pageSize. "

What does it mean by "values"?

For a GET of an LDPC, does it mean:
a) 20 members?
b) 20 RDF triples including the LDPC?
c) 20 RDF triples excluding the LDPC?
d) Something else?

Paging is commonly used for OSLC Query, but there's little in the Core 3.0 spec to describe the expected meaning.