Classify the following animals as bipeds or quadripeds: dog, human, cow, chicken, ostrich, zebra, tyrannosaurus rex, tiger
dog - quadriped
human - biped
cow - quadriped
chicken - biped
ostrich - biped
zebra - quadriped
tyrannosaurus rex - biped
tiger - quadriped
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Classify the following animals as bipeds or quadripeds: dog, human, cow, chicken, ostrich, zebra, tyrannosaurus rex, tiger
### Input: 
### Response: dog - quadriped
human - biped
cow - quadriped
chicken - biped
ostrich - biped
zebra - quadriped
tyrannosaurus rex - biped
tiger - quadriped