 We corroborate the theory by reviewing and refining part of the UCCA EWT corpus and providing a new dataset alongside comparative analysis with other schemes .
<meaning-changed>  We corroborate the theory by reviewing and refining part of the UCCA EWT corpus and providing a new dataset alongside comparative analysis with other schemes .
 We corroborate the theory by reviewing and refining part of the UCCA EWT corpus and providing a new dataset annotated with the refinement layer, and making a comparative analysis with other schemes .