Rather, each language is drawn conditionally on its parent language.
one should estimate a stochastic model of the evolution of linguistic systems through time, and identify "naturalness" with BPP MPP DPP changes from n − 1 changes from n − 1 changes from n − 1 n MAP inventory additions deletions MAP inventory additions deletions MAP inventory additions deletions a a  i, u, a  a  i, u, a  a  4  i, u, a, o o  i, u, a, e  e  i, u, a, o  o  5 i, u, a, o, e e i, u, a, e, @ @ i, u, a, o, @ o Table 2: Highest-probability inventory of each size according to our three models (prototype-based embeddings and d = 3).