Merge pull request #1354 from Tanaquil18/patch-16

swap long alt-text to long_description in Michigan/Chap2Sec3/Q37

Author: gajennings

OpenProblemLibrary/Michigan/Chap2Sec3/Q37.pg

@@ -134,14 +134,8 @@ $ptext
 
 $PAR
 $BCENTER
-\{ image( insertGraph($gr), tex_size=>500, height=>200, width=>400,
-	  extra_html_tags=>'alt="graph of a function that is zero for t ' .
-	  'between 0 and 3, then increases linearly to y=1 as t increases ' .
-	  'to 4, is constant at y=1 until t=8, then decreases linearly to ' .
-	  'y=0 as t increases to 9.  it continues at y=0 until t=14, then ' .
-	  'decreases linearly to y=-2 as t increases to t=15, is constant ' .
-	  'at y=-2 until t=17, then increases to y=0 as t goes to t=18, and ' .
-	  'is zero for t between 18 and 20."' ) \}
+\{ image( insertGraph($gr), tex_size=>500, height=>200, width=>400, alt=>"Graph of a function",
+	  long_description=>"Graph of a function that is zero for t between 0 and 3, then increases linearly to y=1 as t increases to 4, is constant at y=1 until t=8, then decreases linearly to y=0 as t increases to 9.  It continues at y=0 until t=14, then decreases linearly to y=-2 as t increases to t=15, is constant at y=-2 until t=17, then increases to y=0 as t goes to t=18, and is zero for t between 18 and 20." ) \}
 $ECENTER
 $PAR
 $qtext
@@ -166,8 +160,7 @@ Context()->normalStrings;
 foreach ( @ans ) { ANS( Compute($_)->cmp() ); }
 
 Context()->texStrings;
-SOLUTION(EV3(<<'END_SOLUTION'));
-$PAR SOLUTION $PAR
+BEGIN_SOLUTION
 
 $sol