Emotion 

Human Emotion
A basic set of primitive human emotions; the six basic emotions that have well-documented facial expressions associated with them, to which we can assign strength values in the range we have established as a relative measure of intensity and which we can take as standard primitives are provided.<xs:sequence>
  <xs:element name="sadness" type="boolean" default="true"/>
  <xs:element name="joy" type="boolean" default="true"/>
  <xs:element name="anger" type="boolean" default="true"/>
  <xs:element name="fear" type="boolean" default="true"/>
  <xs:element name="disgust" type="boolean" default="true"/>
  <xs:element name="surprise" type="boolean" default="true"/>
</xs:sequence>

Complex Type Information

Model

Attributes

QName Type Fixed Default Use Inheritable Annotation
fromDate xs:dateTime required
humlName xs:string required
humlName xs:string required
id xs:ID required
id xs:ID required
intensity optional 
Intensity
This is a positive number between 0 and 1 used to set a relative scale 
        of the intensity or strength of some behavior, such as a handshake or an emotion.
toDate xs:dateTime required

Source 

<xs:complexType name="Emotion" abstract="true">
  <xs:annotation>
    <xs:documentation xml:lang="en">Human Emotion A basic set of primitive human emotions; the six basic emotions that have well-documented facial expressions associated with them, to which we can assign strength values in the range we have established as a relative measure of intensity and which we can take as standard primitives are provided.
      <xs:sequence>
        <xs:element name="sadness" type="boolean" default="true"/>
        <xs:element name="joy" type="boolean" default="true"/>
        <xs:element name="anger" type="boolean" default="true"/>
        <xs:element name="fear" type="boolean" default="true"/>
        <xs:element name="disgust" type="boolean" default="true"/>
        <xs:element name="surprise" type="boolean" default="true"/>
      </xs:sequence>
    </xs:documentation>
    <xs:appinfo>NONE</xs:appinfo>
  </xs:annotation>
  <xs:attribute ref="intensity"/>
  <xs:attributeGroup ref="humlTemporalAtts"/>
  <xs:attributeGroup ref="humlIdentifierAtts"/>
</xs:complexType>