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JSGFJava Speech Grammar Format
JSGFJava Speech Grammar Format (defined by VXML forum)
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During the same period 2013, JSGF delivered a return of 2.
Extended grammar support: JSGF, IBM BNF, and Nuance GSL; and ECMA Script Action Tags for JSGF, SpeechWorks OSR Tag Format, and Nuance NLU.
For more on grammars, a good starting point is the JSGF reference manual at java.