[
  {"instruction":"Explain blockchain in simple terms","response":"Blockchain is a distributed ledger that records data securely across many computers."},
  {"instruction":"What is a smart contract?","response":"A smart contract is a self-executing program stored on a blockchain."},
  {"instruction":"Define decentralization","response":"Decentralization means no single authority controls the system."},
  {"instruction":"What is Web3?","response":"Web3 is a decentralized version of the internet built on blockchain technology."},
  {"instruction":"What is an airdrop?","response":"An airdrop is free token distribution to users."}
]