What is a lepton?
A lepton is an elementary particle that interacts via the weak force and has a half-integer spin. Examples of leptons include the electron, muon and tau particles and their corresponding neutrinos - the electron neutrino, the muon neutron and the tau neutrino.
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: What is a lepton?
### Input: 
### Response: A lepton is an elementary particle that interacts via the weak force and has a half-integer spin. Examples of leptons include the electron, muon and tau particles and their corresponding neutrinos - the electron neutrino, the muon neutron and the tau neutrino.