Sub-attributes are derived from the average of two primary characteristics.
{{#each (entries config.SUB_ATTRIBUTES) as |entry|}}
{{#with entry.1 as |subAttr|}}
From:
{{#each subAttr.parents as |parentKey|}}
{{uppercase parentKey}}
({{lookup ../../system.characteristics parentKey 'value'}})
{{/each}}
{{localize subAttr.description}}
{{/with}}
{{/each}}