Do we need DELETE and CLEAR?

Observation about SPARQL Update syntax:

SPARQL Update is quite verb-rich, making it (IMHO) harder to learn the  
syntax, and it seems to me that one of CLEAR and DELETE is redundant  
now:

DELETE GRAPH <a>
DELETE DEFAULT                                     # see previous mail
DELETE DATA { <s> <p> <o> . }
DELETE WHERE { <s> <p> ?o . }
DELETE { ?o <p> <s> . } WHERE { <s> <p> ?o . }

The first one is equivalent to
DELETE WHERE { GRAPH <a> { ?s ?p ?o . } }
which is perhaps more evidence that two verbs don't make it clearer.

We do still need DROP GRAPH, as that does something slightly different.

- Steve

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