+STR
+DOC
+SEQ
=VAL "flow in block
=VAL >Block scalar\n
+MAP <tag:yaml.org,2002:map>
=VAL :foo
=VAL :bar
-MAP
-SEQ
-DOC
-STR
+STR
+DOC
+SEQ
=VAL "flow in block
=VAL >Block scalar\n
+MAP <tag:yaml.org,2002:map>
=VAL :foo
=VAL :bar
-MAP
-SEQ
-DOC
-STR