  We show that for each property $\mathsf{P}\in \{\mathsf{OP}, \mathsf{IP},
\mathsf{TP}_1, \mathsf{TP}_2, \mathsf{ATP}, \mathsf{SOP}_3\}$ there is a poset
$\Sigma_{\mathsf{P}}$ such that a theory has property $\mathsf{P}$ if and only
if some model interprets a poset in which $\Sigma_{\mathsf{P}}$ can be
embedded. We also introduce a new property $\mathsf{SUP}$, consistent with
$\mathsf{NIP}_2$ and implying $\mathsf{ATP}$ and $\mathsf{SOP}$.
