Dependency-to-string translation model

The code that implements the dependency-to-string translation model described in

Liangyou Li, Jun Xie, Qun Liu. (2014). Transformation and Decomposition for Efficiently Implementing and Improving Dependency-to-String Model in Moses. In Proceedings of SSST-8, Eighth Workshop on Syntax, Semantics and Structure in Statistical Translation, pages 122–131, October 25, 2014, Doha, Qatar.