# Check Spelling in Conversations

Answer Server can check the spelling of input to a conversation system. This means that if a user makes a spelling error, the conversation system can still suggest potential answers.

When a user submits input that does not trigger any tasks, Answer Server runs the spelling checker. If a spelling correction is possible and that correction would trigger one or more tasks, the user is presented with the suggested correction and a list of matching tasks through the standard disambiguation prompt.

To check spelling you must have an IDOL Content component that contains a large amount of indexed documents. The words in the conversation are checked against the words present in the index. With a sufficiently large amount of data spelling errors can be identified.

To check spelling in conversations

1. Open your configuration file in a text editor.

2. Create a new section in the configuration file and configure a spelling checker. You can give the section any name. Set the following parameters:

   `Type` | The type of component to use to check spelling. Set this parameter to `Content`.
   `Host` | The host name or IP address of the machine hosting the IDOL Content component.
   `ACIPort` | The ACI port of the IDOL Content component.
   `LanguageType` | The value to use for the `LanguageType` parameter, in `Query` actions sent to the IDOL Content component.

   For example:

       [MySpellingChecker]
       Type=Content
       Host=localhost
       ACIPort=12345
       LanguageType=englishUTF8

   For more information about these configuration parameters, refer to the Answer Server Reference.

3. Find the configuration section for the Conversation system. In this section, set the configuration parameter `SpellcheckEngine` to the name of the section that you created in the previous step. For example:

       [MyConversationSystem]
       SpellcheckEngine=MySpellingChecker

4. Restart Answer Server for your configuration changes to take effect.

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