B11 //open_auction/bidder/../bidder/../bidder/../interval
B12 //item/@id/../@id/../@id/../@id/../name
B13 //keyword/ancestor::parlist/descendant::keyword/ancestor::parlist/descendant::keyword/ancestor::parlist/descendant::keyword
B11 //open_auction/bidder/../bidder/../bidder/../interval
B12 //item/@id/../@id/../@id/../@id/../name
B13 //keyword/ancestor::parlist/descendant::keyword/ancestor::parlist/descendant::keyword/ancestor::parlist/descendant::keyword