Proposal: A Markdown document whose YAML preamble is valid JSON-LD, allowing the same file to serve as a human README, machine-readable catalog record, codebook, and export source.

alternative-rdfa.md

Amsterdam Street Tree Inventory, 2024

Street tree records with species, location, planting year, and maintenance zone.

DOI: 10.5281/zenodo.1234567

License: CC BY 4.0

Data dictionary

Column	Description
tree_id	Stable tree identifier.
species_latin	Scientific species name.

dataset.md

@context	schema dcat dct cr https://schema.org/ http://www.w3.org/ns/dcat# http://purl.org/dc/terms/ http://mlcommons.org/croissant/
@type	schema:Dataset dcat:Dataset
@id	https://doi.org/10.5281/zenodo.1234567
name	Amsterdam Street Tree Inventory, 2024
description	Street tree records with species, location, planting year, and maintenance zone.
identifier	@type propertyID value schema:PropertyValue DOI 10.5281/zenodo.1234567
license	https://creativecommons.org/licenses/by/4.0/
creator	@type name schema:Organization Example Urban Data Lab
datePublished	2024-10-15
keywords	urban forestry street trees Amsterdam
dcat:theme	environment urban planning
distribution	@type name contentUrl encodingFormat dcat:Distribution CSV data file data/amsterdam_street_trees.csv text/csv
recordSet	@type name field cr:RecordSet trees @type name dataType description cr:Field tree_id sc:Text Stable tree identifier. @type name dataType description cr:Field species_latin sc:Text Scientific species name. @type name dataType description cr:Field planted_year sc:Integer Year the tree was planted, where known. @type name dataType description cr:Field latitude sc:Float Latitude in WGS84. @type name dataType description cr:Field longitude sc:Float Longitude in WGS84.

Amsterdam Street Tree Inventory, 2024

This dataset contains street tree records for Amsterdam, including species names, coordinates, planting year, and maintenance zones.

Files

• data/amsterdam_street_trees.csv — main data table
• docs/methodology.md — collection and cleaning notes
• LICENSE — CC BY 4.0 license

Data dictionary

Column	Type	Description
tree_id	text	Stable tree identifier
species_latin	text	Scientific species name
planted_year	integer	Year planted, where known
latitude	float	WGS84 latitude
longitude	float	WGS84 longitude

Citation

Example Urban Data Lab. Amsterdam Street Tree Inventory, 2024. Zenodo. DOI: 10.5281/zenodo.1234567.

wikipage.md

@context	schema wd wdt p ps pq xsd https://schema.org/ https://www.wikidata.org/entity/ https://www.wikidata.org/prop/direct/ https://www.wikidata.org/prop/ https://www.wikidata.org/prop/statement/ https://www.wikidata.org/prop/qualifier/ http://www.w3.org/2001/XMLSchema#
@id	wd:Q727
@type	schema:City
schema:name	Amsterdam
wdt:P17	@id name wd:Q55 Netherlands
wdt:P625	@type schema:latitude schema:longitude schema:GeoCoordinates 52.3728 4.8936
p:P1082	ps:P1082 pq:P585 @value @type 921402 xsd:integer @value @type 2024-01-01 xsd:date
wdt:P856	@id https://www.amsterdam.nl/

Amsterdam

Amsterdam is the capital city of the Netherlands and one of the country’s main cultural, economic, and transport centers.

Overview

The city is known for its canal system, historic architecture, museums, cycling infrastructure, and role in Dutch public life.

Geography

Amsterdam is located in the province of North Holland, near the IJ and the Amstel river.

See also

• Netherlands
• North Holland
• Randstad