-'hebrew-calendar-m1' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m2' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m3' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m4' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m5' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m6' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m6a' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m6b' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m7' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m8' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m9' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m10' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m11' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m12' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m1-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m2-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m3-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m4-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m5-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m6-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m6a-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m6b-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m7-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m8-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m9-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m10-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m11-gen' => 'Name of month in Hebrew calender.',
-'hebrew-calendar-m12-gen' => 'Name of month in Hebrew calender.',
+'hebrew-calendar-m1' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m2' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m3' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m4' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m5' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m6' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m6a' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m6b' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m7' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m8' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m9' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m10' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m11' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m12' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m1-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m2-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m3-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m4-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m5-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m6-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m6a-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m6b-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m7-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m8-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m9-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m10-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m11-gen' => '{{optional}}
+Name of month in Hebrew calender.',
+'hebrew-calendar-m12-gen' => '{{optional}}
+Name of month in Hebrew calender.',