'Alt' -> 'alt' and 'NegatedPropertySets' -> 'NPS'

Author: hartig

spec/index.html

@@ -9807,11 +9807,11 @@ <h3>Property Path Patterns</h3>
           to other SPARQL graph patterns, such as converting property paths of length one to triple
           patterns, which in turn are combined into basic graph patterns.
           This leaves algebraic property path expressions with the operators
-          <a href="#defn_ppeAlt" class="ppeOp">Alt</a>,
+          <a href="#defn_ppeAlt" class="ppeOp">alt</a>,
           <a href="#defn_ppeZeroOrOnePath" class="ppeOp">ZeroOrOnePath</a>,
           <a href="#defn_ppeZeroOrMorePath" class="ppeOp">ZeroOrMorePath</a>,
           <a href="#defn_ppeOneOrMorePath" class="ppeOp">OneOrMorePath</a>,
-          and <a href="#defn_ppeNPS" class="ppeOp">NegatedPropertySets</a>,
+          and <a href="#defn_ppeNPS" class="ppeOp">NPS</a>,
           as well as algebraic property path
           expressions contained within these operators.</p>
         <p>The property path patterns with these remaining algebraic property path expressions