Minecraft Block Pets command

/summon falling_block ~ ~1 ~ {Block:"command_block",Time:1,TileEntityData:{Command:"/fill ~2 ~-1 ~1 ~6 ~-1 ~-2 quartz_block"},Passengers:[{id:falling_block,Block:"redstone_block",Time:1,Passengers:[{id:falling_block,Block:"command_block",Time:1,TileEntityData:{Command:/setblock ~3 ~-2 ~ repeating_command_block 1 replace {Command:/execute @e[type=Rabbit,name=StonePet] ~ ~ ~ /summon falling_block ~ ~ ~ {Block:stone}}},Passengers:[{id:falling_block,Block:"redstone_block",Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/setblock ~3 ~-3 ~ chain_command_block 1 replace {Command:/effect @e[type=Rabbit,name=StonePet] invisibility}},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/setblock ~4 ~-6 ~ repeating_command_block 1 replace {Command:/execute @e[type=Rabbit,name=DiamondPet] ~ ~ ~ /summon falling_block ~ ~ ~ {Block:diamond_block}}},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/setblock ~4 ~-7 ~ chain_command_block 1 replace {Command:/effect @e[type=Rabbit,name=DiamondPet] invisibility}},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/setblock ~5 ~-10 ~ repeating_command_block 1 replace {Command:/execute @e[type=Rabbit,name=DioriteZombie] ~ ~ ~ /summon Zombie ~ ~ ~ {CustomName:"DioriteEnemy",ActiveEffects:[{Id:14,Particles:0,Amplifier:1,Duration:999999}]}}},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/setblock ~5 ~-11 ~ chain_command_block 1 replace {Command:/execute @e[type=Zombie,name=DioriteEnemy] ~ ~ ~ /summon falling_block ~ ~ ~ {Block:stone,Data:4}}},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/setblock ~5 ~-12 ~ chain_command_block 1 replace {Command:/kill @e[type=Rabbit,name=DioriteZombie]}},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~3 ~-16 ~-1 ~5 ~-14 ~-1 redstone_block},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~2 ~-18 ~1 ~6 ~-16 ~1 glass},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~2 ~-20 ~-2 ~6 ~-18 ~-2 glass},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~2 ~-22 ~ ~2 ~-20 ~-1 quartz_block},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~6 ~-24 ~ ~6 ~-22 ~-1 quartz_block},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~2 ~-23 ~1 ~6 ~-23 ~-2 quartz_block},Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~1 ~1 ~1 ~-1 ~-29 ~-1 air},Passengers:[{id:falling_block,Block:redstone_block,Time:1}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}