System Entities

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Entities are used to extract user information from natural language.

A distinction is usually made between system entities and custom entities. System entities are already contained in the system entities for addresses, times and numbers, for example. A complete list of the system entities of Dialog flow can be found under systemities. Here are some examples of the different types of system units.

System Mapping

These system units have reference values. For example, matches general date references such as "January 1, 2015" or "First Day in January 2015" and returns a reference value in ISO 8601 format: 2015-01-01T12:00:00-03:00

System Enum 

>These entities have no reference value. For example, @sys.color matches the most common colors and returns the matching color as it is without assigning it to a reference value. For example, red tones like "scarlet" or "purple" are not mapped to "red", but return their original values "scarlet" and "purple".

System Composite 

Diese Entitäten können andere Entitäten mit <strong>Aliasen</strong> enthalten und <strong>Objekttypwerte</strong> zurückgeben. Beispiel: <strong>@sys.unit-currency</strong> dient zum Abgleichen von Geldbeträgen mit einem Währungsnamen wie „50 Euro“ oder „20 Dollar und 5 Cent“. Es wird ein Objekttypwert zurückgegeben, der aus zwei Attribut-Wert-Paaren besteht: <strong>{„amount“:50,“currency“:“EUR“}</strong>

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