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Given a tree $T$, the cohomology ring of its unordered configuration space$H^{\ast}(U\mathcal{D}^nT)$ is an exterior face algebra if $T$ is a binary coretree (if by removing the leaves from $T$ we obtain a binary tree), or if $n=4$.This means that every cup product is determined by a simplicial complex $K_nT$.In this paper we show how to recover the tree $T$ from the simplicial complex$K_nT$ when $n=4.$

Recovering trees from the cohomology ring of their configuration spaces