Keyphrases
- natural language
- wide coverage
- broad coverage
- parse tree
- english language
- machine translation
- automatically generating
- controlled natural language
- word order
- statistical machine translation
- answer questions
- semantic analysis
- language learning
- bayesian networks
- computer assisted language learning
- context free grammars
- english text
- relation extraction
- natural language sentences
- probabilistic model
- tree bank
- stochastic grammar