Consists of a scheme $X$, satisfying the following properties:

$X$ not irreducible, finite dimensional, not all stalks of the structure sheaf are domains, reduced, dimension 1, connected, pure dimension 1, not all stalks of the structure sheaf are irreducible, quasi-compact, not normal, separated, noetherian, not integral, not regular, locally noetherian, affine

By the theorems, we also have {"X": {"quasi-separated": true}}