[libdb-develop] parts example

[Bruce D'A. <bd...@fa...>]

OK, I'm trying to wrap my head around FRBR and the parts stuff.  
Schematically, is this right, using an example of a speech?

work = 	a speech title and creator
expression = 	performance place and date
manifestations = 	text [isPartOf] academic journal (parts details = 
volume, issue, pages)
				moving image [isPartOf] video compilation (parts details = ______ )

Bruce