Tags - Amazon Lex

Tags

The following discussion applies to tags defined for grammars. For more information, see Tags in the Speech recognition grammar specification version 1 W3C recommendation.

Based on the SRGS specification, tags can be defined in the following ways:

  1. As part of a header declaration as described in Header declarations.

  2. As part of a <rule> definition.

The following tag formats are supported:

  • semantics/1.0 (SISR, ECMAScript)

  • semantics/1.0-literals (SISR string literals)

The following tag formats are not supported:

  • swi-semantics/1.0 (Nuance proprietary)

Example

<grammar xmlns="http://www.w3.org/2001/06/grammar"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xml:base="http://www.example.com/base-file-path"
         xsi:schemaLocation="http://www.w3.org/2001/06/grammar
                             http://www.w3.org/TR/speech-grammar/grammar.xsd"
         xml:lang="en-US"
         version="1.0"
         mode="voice"
         root="city"
         tag-format="semantics/1.0-literals">
    <rule id="no">
        <one-of>
            <item>no</item>
            <item>nope</item>
            <item>no way</item>
        </one-of>
        <tag>no</tag>
    </rule>
</grammar>