What Fits into What?

The Task: We want to compare compounds pairwise in a database by the number of smaller compounds that are common to both.
We can use Tversky! --with and for asymmetry. Thereby counting what entirely fits into what.
The pairwise counts define the asymmetric similarity.

The Task: We want to compare compounds pairwise in a database by the number of smaller compounds that are common to both.