The <e1>pipeline</e1> that the <e2>gas</e2> leaked from belongs to Puyang company, and was constructed by Nanjing Sanye utility installment company.
The pipeline that the
The pipeline that the gas leaked from belongs to Puyang company, and was constructed by Nanjing Sanye utility installment company.
<triplet> pipeline <subject> gas <object> Entity-Origin(e2,e1)