---
version: '1.1'
var1:  # first variable
family:  # a family
  var2:
    description: a second variable
    test:
      - string6
  subfamily:  # a sub family
    variable:
      description: third variable
      default:
        - variable: var1
        - variable: family.var2
family2:  # a family
  var2:
    description: a variable2
    default:
      variable: family.var2
  var3:
    default: string4
    test:
      - string5
  subfamily:  # a sub family
    variable:
      description: fourth variable
      default:
        - variable: var1
        - variable: family.var2
        - variable: family2.var3