Netgraph: a Tool for Searching in Prague Dependency Treebank 2.0

We present Netgraph— a tool for searching in linguistically annotated treebanks. It works in the Internet environment, on multi–user and client–server basis. Netgraph has a graphically oriented hardware independent user–friendly interface. The query system is very intuitive, easy to learn, understand and use, nevertheless it can perform advanced searches. We show how Netgraph can be used for such complex annotation schemes as the Prague Dependency Treebank 2.0 with its non–1:1 relation among nodes on different layers. We also mention main properties of two other searching tools available for this treebank.