"Allows value" is a predefined property that can define a list of permissible values to restrict value assignments for a property and is provided by Semantic MediaWiki. This property is pre-deployed (also known as special property) and comes with additional administrative privileges but can be used just like any other user-defined property.
We are a quiet village and will not make much noise. So we like to be placed on a quiet location. +, We do not make party ourselves but like to be placed near the party villages. +, We do not make party but will make some noise. +, …
1. All we want is some space for our group in the hackcenter. +, 2. We'd like to come together with a lot of people, a spot with lot's of people passing by and good visibility would be nice. +, 3. We need something special or in between those options: Please specify in the field planning notes. +