Semantic-Embedding-Examples.md

 Some simple examples of embedded semantic tree. Note that for readability the attributes have been abbreviated
 
+Original MathML:
+```html
+<math>
+  <mn>5</mn>
+  <mo>=</mo>
+  <mn>3</mn>
+  <mo>+</mo>
+  <mn>2</mn>
+</math>
+```
+
+Semantically enriched MathML:
+```html
+<math>
+  <mrow semantic-type="relseq" semantic-role="equality" id="6" semantic-content="1" semantic-children="0,5">
+    <mn semantic-type="number" semantic-role="integer" id="0" semantic-parent="0">5</mn>
+    <mo semantic-type="relation" semantic-role="equality" id="1" semantic-operator="relseq,=" semantic-parent="1">=</mo>
+    <mrow semantic-type="infixop" semantic-role="addition" id="5" semantic-content="3" semantic-children="2,4" semantic-parent="5">
+      <mn semantic-type="number" semantic-role="integer" id="2" semantic-parent="2">3</mn>
+      <mo semantic-type="operator" semantic-role="addition" id="3" semantic-operator="infixop,+" semantic-parent="3">+</mo>
+      <mn semantic-type="number" semantic-role="integer" id="4" semantic-parent="4">2</mn>
+    </mrow>
+  </mrow>
+</math>
+```
+
+Observe that for the semantic interpretation the original MathML tags are pretty irrelevant. E.g., writing numbers as identifiers still yields the same semantic markup.
+
 Original MathML:
 ```html
 <math>