+STR
+DOC
+MAP
=VAL &a1 <tag:yaml.org,2002:str> "foo
=VAL <tag:yaml.org,2002:str> :bar
=VAL &a2 :baz
=ALI *a1
-MAP
-DOC
-STR
+STR
+DOC
+MAP
=VAL &a1 <tag:yaml.org,2002:str> "foo
=VAL <tag:yaml.org,2002:str> :bar
=VAL &a2 :baz
=ALI *a1
-MAP
-DOC
-STR