Erratum in SPARQL 1.1 Overview?

Hi,

In the overview [1], the Update example in Section 6:

PREFIX foaf: <http://xmlns.com/foaf/0.1/> .

INSERT DATA { <http://www.example.org/alice#me> foaf:knows [ foaf:name "Dorothy" ]. } ;
DELETE { ?person foaf:name ?mbox }
WHERE { <http://www.example.org/alice#me> foaf:knows ?person .
         ?person foaf:name ?name FILTER ( lang(?name) = "EN" ) .}

has

DELETE { ?person foaf:name ?mbox }

where the variable ?mbox isn't bound.  Shouldn't it be:

DELETE { ?person foaf:name ?name }

?  (Even if it would work, which I doubt, it's confusing.)

Checking to see if the same error occurs in the Update recommendation 
[2] (it doesn't), I noticed that the "Data before" and "Data after" 
headers in Example9 both contain a typo ('>' instead of '<' at the start 
of a URL):

*# Graph: http://example/people*
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix rdf:  >http://www.w3.org/1999/02/22-rdf-syntax-ns#> .


Richard

[1] http://www.w3.org/TR/sparql11-overview/
[2] http://www.w3.org/TR/sparql11-update/#deleteData
-- 
*Richard Light*