reltextunit = (('sec'|'second'|'min'|'minute'|'hour'|'day'|'week'|'fortnight'|'forthnight'|'month'|'year') 's'?) | dayfull;
relnumber = ([+-]?[0-9]+);
-relative = (relnumber space reltextunit)+;
-relativetext = (reltextnumber space reltextunit)+;
+relative = (relnumber space? reltextunit)+;
+relativetext = (reltextnumber space? reltextunit)+;
*/
reltextunit = (('sec'|'second'|'min'|'minute'|'hour'|'day'|'week'|'fortnight'|'forthnight'|'month'|'year') 's'?) | dayfull;
relnumber = ([+-]?[0-9]+);
-relative = (relnumber space reltextunit)+;
-relativetext = (reltextnumber space reltextunit)+;
+relative = (relnumber space? reltextunit)+;
+relativetext = (reltextnumber space? reltextunit)+;
*/