Not really well defined obviously, but here's some information: https://www.wikihow.com/What-Are-the-Bases-in-Dating https://www.wikihow.com/What-Are-the-Bases-

Not really well defined obviously, but here's some information: https://www.wikihow.com/What-Are-the-Bases-in-Dating https://www.wikihow.com/What-Are-the-Bases-in-Dating