<triangle>

<triangle> (미명시된 내포 수형도, 도출될 때 그 특성적 모양 때문에 그렇게 불린다.) 미명시된 eTree를 제시한다. 즉, 정보가 삭제된 eTree [19.3 Another Tree Notation]
모듈 nets — Graphs, Networks, and Trees
속성 att.global (@xml:id, @n, @xml:lang, @xml:base, @xml:space) (att.global.rendition (@rend, @style, @rendition)) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) (att.global.responsibility (@cert, @resp)) (att.global.source (@source))
value⚓ 삼각형의 값을 제시하며, 그 값은 자질 구조 또는 기타 분석적 요소의 확인소이다.
상태 수의적
자료 유형 teidata.pointer
에 의해 포함된
nets: eTree forest triangle
포함할 수 있다
core: label
nets: eLeaf eTree triangle
주석

An optional label followed by zero or more embedding trees, triangles, or embedding leafs.
예
<triangle>
 <label>NP</label>
 <eLeaf>
  <label>the periscope</label>
 </eLeaf>
</triangle>
Content model 
<content>
 <sequence>
  <elementRef key="label" minOccurs="0"/>
  <alternate minOccurs="0"
   maxOccurs="unbounded">
   <elementRef key="eTree"/>
   <elementRef key="triangle"/>
   <elementRef key="eLeaf"/>
  </alternate>
 </sequence>
</content>
선언 
<rng:element name="triangle">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:optional>
  <rng:attribute name="value">
   <rng:ref name="teidata.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:group>
  <rng:optional>
   <rng:ref name="label"/>
  </rng:optional>
  <rng:zeroOrMore>
   <rng:choice>
    <rng:ref name="eTree"/>
    <rng:ref name="triangle"/>
    <rng:ref name="eLeaf"/>
   </rng:choice>
  </rng:zeroOrMore>
 </rng:group>
</rng:element>
element triangle
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   attribute value { teidata.pointer }?,
   ( label?, ( eTree | triangle | eLeaf )* )
}