user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: what is the name of the family of a computer processor that is also a variant of atmega164pa? 
Knowledge Triplets: megaAVR, computer.computer_processor.variants, ATmega3250P
ATmega324PA, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega2560
megaAVR, computer.computer_processor.variants, ATmega3250
ATmega64A, computer.computer_processor.processor_family, megaAVR
ATmega6450, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega1284P
ATmega165P, computer.computer_processor.processor_family, megaAVR
ATmega1284P, computer.computer_processor.processor_family, megaAVR
ATmega2560, computer.computer_processor.processor_family, megaAVR
ATmega164PA, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega1281
megaAVR, computer.computer_processor.variants, ATmega8535
megaAVR, computer.computer_processor.variants, ATmega164P
megaAVR, computer.computer_processor.variants, ATmega165P
megaAVR, computer.computer_processor.variants, ATmega8A
ATmega8515, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega328P
megaAVR, computer.computer_processor.variants, ATmega168PA
ATmega645, computer.computer_processor.processor_family, megaAVR
ATmega3250, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega1280
megaAVR, computer.computer_processor.variants, ATmega645
Atmel AVR, computer.computer_processor.variants, megaAVR
megaAVR, computer.computer_processor.variants, ATmega64A
ATmega8A, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega162
ATmega2561, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega16A
ATmega32A, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, Atmel AVR
megaAVR, computer.computer_processor.variants, ATmega644P
ATmega325, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega640
ATmega1280, computer.computer_processor.processor_family, megaAVR
ATmega324P, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega128A
ATmega88, computer.computer_processor.processor_family, megaAVR
ATmega162, computer.computer_processor.processor_family, megaAVR
ATmega3250P, computer.computer_processor.processor_family, megaAVR
ATmega644P, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega325
ATmega64, computer.computer_processor.processor_family, megaAVR
ATmega325P, computer.computer_processor.processor_family, megaAVR
ATmega168PA, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.processor_family, Atmel AVR
megaAVR, computer.computer_processor.variants, ATmega64
ATmega328P, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega644
megaAVR, computer.computer_processor.variants, ATmega325P
ATmega48PA, computer.computer_processor.processor_family, megaAVR
ATmega640, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega32A
ATmega1281, computer.computer_processor.processor_family, megaAVR
ATmega644PA, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega48PA
ATmega164P, computer.computer_processor.processor_family, megaAVR
ATmega8535, computer.computer_processor.processor_family, megaAVR
ATmega128A, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega324P
ATmega644, computer.computer_processor.processor_family, megaAVR
ATmega32, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega6450
megaAVR, computer.computer_processor.variants, ATmega164PA
megaAVR, computer.computer_processor.variants, ATmega324PA
megaAVR, computer.computer_processor.variants, ATmega8515
megaAVR, computer.computer_processor.variants, ATmega32
ATmega16A, computer.computer_processor.processor_family, megaAVR
megaAVR, computer.computer_processor.variants, ATmega2561
megaAVR, computer.computer_processor.variants, ATmega88
megaAVR, computer.computer_processor.variants, ATmega644PA

Answer: Atmel AVR