Which number grouping is a valid IPv$6$ address $??$

$1234$:$1230$:$1238$::$1299$:$1000$::

$12$aa::$1298$:$1200$::$129$b

$2001$:$0$db$8$:$3$c$55$:$0015$:$1010$:$0000$ff$13$

$1b10$::$1100$::$2001$::$2900$::$ab11$::$1102$::$0000$::$2900$