# Span
<a name="API_agent-runtime_Span"></a>

Contains information about where the text with a citation begins and ends in the generated output.

This data type is used in the following API operations:
+  [RetrieveAndGenerate response](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_agent-runtime_RetrieveAndGenerate.html#API_agent-runtime_RetrieveAndGenerate_ResponseSyntax) – in the `span` field
+  [InvokeAgent response](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_agent-runtime_InvokeAgent.html#API_agent-runtime_InvokeAgent_ResponseSyntax) – in the `span` field

## Contents
<a name="API_agent-runtime_Span_Contents"></a>

 ** end **   <a name="bedrock-Type-agent-runtime_Span-end"></a>
Where the text with a citation ends in the generated output.  
Type: Integer  
Valid Range: Minimum value of 0.  
Required: No

 ** start **   <a name="bedrock-Type-agent-runtime_Span-start"></a>
Where the text with a citation starts in the generated output.  
Type: Integer  
Valid Range: Minimum value of 0.  
Required: No

## See Also
<a name="API_agent-runtime_Span_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/bedrock-agent-runtime-2023-07-26/Span) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-agent-runtime-2023-07-26/Span) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-agent-runtime-2023-07-26/Span)