Optional placeholders
has assertion: assertion
has provenance: provenance
has publication info: pubinfo
type: Nanopublication
created: 2026-08-17T18:40:17.233Z
creator: Tobias Kuhn
license: https://creativecommons.org/publicdomain/zero/1.0/
introduces: paragraph
was created at: nanodash.knowledgepixels.com

paragraph
about: grlc-query
title: Optional placeholders
type: Paragraph
has content: Optional placeholders in nanopublication query templates also follow grlc syntax. Such optional placeholders, which don't necessarily need to be filled before running the query, start with two underscores instead of just one, e.g. "?__filter_iri" or "?__filtertext".
has position string: 01.03

sig
has algorithm: RSA
signed by: Tobias Kuhn