टेम्पलेट:Infobox ship characteristics/paramline

For internal use by {{Template:Infobox ship characteristics}}:

First parameter: infobox line label

Second parameter: optional value for parameter

if absent and no WD parameter: line is not displayed

if absent and WD parameter: Wikidata is used to provide a value

if "none": line is not displayed

WD= optional Wikidata property (e.g. "ship class" or "P289")