Explain with examples the three notions of phone, phoneme, and allophone, and also how they are related.

Phones are the minimal sound segments|that human speech organs can produce|They are basic units of phonetic study and transcribed within square brackets|such as [ei ]|Phonemes are the abstract collection of phonetic features|which can distinguish meaning|and are transcribed with the IPA symbols|but within slant lines|such as /ei /