DataTypes in

Hi colleagues,
This is probably old discussions but probably someone can help me to 
understand why the accepts  plein-Literal where sxd dataType 
were expected? This for all DataTypes ?.
Predicates like schema:birthDate , schema:startDate etc we expected as 
object xsd:date but we have a string literal. Which is handicap for use of 
those predicate in semantic web. Actually with plein-literal we can use 
whatever in the quotes.
Can someone help me to see clear there?
Additionally is it true that accepts strings where objects were 

Kind Regards,

Marc Twagirumukiza | Agfa HealthCare
Senior Clinical Researcher | HE/Advanced Clinical Applications Research
T  +32 3444 8188 | M  +32 499 713 300
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Received on Tuesday, 4 November 2014 08:21:31 UTC