Self-joins?

[Ryan Shaw]

Is it possible to use tarql to join a CSV table to itself?

For instance, suppose I have the following CSV:

id,name,likes

a,Alice,Bob

b,Bob,

c,Carl,Alice

And I want to end up with:

@prefix ex:  <http://example.org/> .

ex:a  ex:likes  ex:b  .

ex:c  ex:likes  ex:a  .

Is this possible to do with a single CONSTRUCT query, possibly using a subquery somehow?