+STR
+DOC
+MAP
=VAL <tag:yaml.org,2002:str> :a
=VAL :b
=VAL :c
=VAL <tag:yaml.org,2002:int> :42
=VAL :e
=VAL <tag:yaml.org,2002:str> :f
=VAL :g
=VAL :h
=VAL <tag:yaml.org,2002:str> :23
=VAL <tag:yaml.org,2002:bool> :false
-MAP
-DOC
-STR