i am stuck with a requirement to check a database table and retrieve the primary keys for rows containing the xml files with specific nodes inside.

For example , we will have to retrieve files with value Honda inside node C with parent node B and its parent A. we will have to check for another value for a sibling node to C also, but the problem with simple SQL (using existsnode ) was that it retrieved wrong results because there was duplicate parent nodes. for example Honda may be there in one c, but the other value will be present under another parent node and child node with same name. eg- inside a list.
A
-B
-C hONDA
-D DIESEL
-B
-C BENZ
-D PETROL

IT WILL retyrieve true for query for honda petrol.
Are ypu sure we can check for sibling nodes with oracle text?

kindly contact me in my email please!