errata in http://www.w3.org/TR/2009/REC-owl2-primer-20091027/

1. In the sentence

Among other constructs, OWL 2 QL disallows existential quantification
of roles to a class expression, i.e. it can be stated that every
person has a parent but not that every person has a female parent.


the text "i.e." should be "e.g."

2.In
"whereas reasoners are used to query ontologies for implicit
knowledge, i.e. they determine whether a statement in question is a
logical consequence an ontology." The last  clause


does not parse in English.  Probably what is desired is
"i.e., they determine whether a statement in question is a logical
consequence in an ontology."

Note also that a comma is recommended by the Chicago Manual of Style
after "i.e.". Other authorities disagree. Does W3 have a punctuation
style guide?

Bob Morris

-- 
Robert A. Morris
Professor of Computer Science (nominally retired)
UMASS-Boston
100 Morrissey Blvd
Boston, MA 02125-3390
Associate, Harvard University Herbaria
email: ram@cs.umb.edu
web: http://bdei.cs.umb.edu/
web: http://etaxonomy.org/FilteredPush
http://www.cs.umb.edu/~ram
phone (+1)617 287 6466

Received on Friday, 6 November 2009 18:52:35 UTC