Unsupported construct type UnaryNot.

[bnouwt]

As expected LodView still misses certain constructs that are not yet supported. In this case it is the UnaryNot construct. LodView uses the following query that causes the above error.

select (count(distinct ?s) AS ?o) ?p {?s ?p <https://tno.nl/Neil_Armstrong>. FILTER(!isBlank(?s))} GROUP BY ?p LIMIT 100

I suspect the 'exclamation mark' (!) in FILTER(!isBlank(?s)) in this query is causing it.