The search2.xsd schema enables merchants to provide hypernyms.
A hypernym is a word with a broad meaning that more specific words fall under. For example, color is a hypernym of red.
If the hypernym of a hypernym group is empty, the system issues a warning and skips the hypernym group. For example:
<hypernym-list xml:lang="x-default">
<hypernym-rule>
<hypernyms></hypernyms>
<hyponyms> 1 </hyponyms>
</hypernym-rule>
</hypernym-list>
In this example, the system provides the following error:
WARN [WARNING] [DATAERROR] Line: 201/Hypernym Group:Empty hypernym. Skipping hypernym group.