Minor cosmetic bugs

Author: TobiasWrigstad

xml/chapter4/section4/subsection2.xml

@@ -1354,8 +1354,8 @@ rule(lives_near(person_1, person_2),
 assert(job(list("Bitdiddle", "Ben"), list("computer", "wizard")))
 
 assert(rule(wheel(person),
-            and(supervisor(middle-manager, person),
-                supervisor(x, middle-manager))))
+            and(supervisor(middle_manager, person),
+                supervisor(x, middle_manager))))
       </JAVASCRIPT>
     </SNIPPET>
     <INDEX>query interpreter<SUBINDEX>overview|)</SUBINDEX></INDEX>

xml/chapter4/section4/subsection4.xml

@@ -1460,7 +1460,7 @@ function apply_a_rule(rule, query_pattern, query_frame) {
 	<JAVASCRIPT><JAVASCRIPTINLINE>rule_body</JAVASCRIPTINLINE></JAVASCRIPT>
       </SPLITINLINE>
       and <SCHEMEINLINE>conclusion</SCHEMEINLINE> that extract parts
-      of a rule are defined in section<SPACE/>7<REF NAME="sec:query-syntax"/>.
+      of a rule are defined in section<SPACE/><REF NAME="sec:query-syntax"/>.
     </TEXT>
 
     <TEXT>

xml/chapter5/chapter5.xml

@@ -39,7 +39,7 @@
 
     <INDEX>Kepler, Johannes</INDEX>
     <ATTRIBUTION><AUTHOR>Johannes Kepler</AUTHOR>
-      <DATE>(letter to Herwart von Hohenburg, 1605)</DATE>
+      <DATE>letter to Herwart von Hohenburg, 1605</DATE>
     </ATTRIBUTION>
 
   </EPIGRAPH>