# Quick YAML Vocabulary Lesson for Mongers
  - directive:  %YAML or %TAG line
  - stream:     A complete (to eof) YAML file
  - document:   A single top level object
  - mapping:    A hash (ref)
  - sequence:   An array (ref)
  - collection: A map or seq
  - scalar:     A scalar
  - node:       A map, seq or scalar
  - anchor:     A label of a node
  - alias:      A reference to a anchored node
  - block:      Indented scoping
  - flow:       Curly/Square scoping
  - literal:    HEREDOC
  - dump:       Perl to YAML
  - load:       YAML to PERL