how to summon mobs riding mobs with names

/summon Blaze ~ ~ ~ {CustomName:"Fire Cow",ActiveEffects:[{Id:14,Duration:999999,Ambient:1}],Riding:{id:Cow,,ActiveEffects:[{Id:12,Duration:999999,Ambient:25}]}}

/summon Creeper ~ ~ ~ {CustomName:Sheep,ActiveEffects:[{Id:14,Duration:999999,Ambient:1}],Riding:{id:Sheep}}



ID -Bat
ID -Blaze
ID-CaveSpider
ID-Chicken
ID-Cow
ID -Creeper
ID-EnderDragon
ID-Enderman
ID-Ghast
ID-Giant
ID-EntityHorse
ID-LavaSlime
ID-MushroomCow
ID-Ozelot
ID-Pig
ID-PigZombie
ID-Sheep
ID-Silverfish
ID-Skeleton
ID-Slime
ID-SnowMan
ID-Spider
ID-Squid
ID-Villager
ID-VillagerGolem
ID-Witch
ID-WitherBoss
Id-Wolf
ID-Zombie

CHARGED CREEPER - /summon Creeper x y z {power:1}
ZombieHorse - /summon EntityHorse x y z {Type:3}
SkeletonHorse - /summon Entityhorse x y z {Type:4}
Giant - /summon Giant x y z
EnderDragon - /summon EnderDragon x y z
Wither - /summon WitherBoss x y z
EnderCrystal - /summon EnderCrystal x y z

Attributes:[{Name:generic.movementSpeed,Base:0.001}]

{Name:generic.attackDamage,Base:4.0,}
{Name:generic.followRange,Base:3.0}
{Name:generic.movementSpeed,Base:0.001}


summon Witch ~ ~ ~ {CustomName:Elphaba,Attributes:[{Name:generic.movementSpeed,Base:0.001}]}