  Any physical theory aims to establish the relationship between physical
systems in terms of the interaction between these systems. However, any known
approach in the literature to infer this interaction is dependent on the
particular modelling of the physical systems involved. Here, we propose an
alternative approach where one does not need to model the systems involved but
only assume that these systems behave according to quantum theory. We first
propose a setup to infer a particular entangling quantum interaction between
two systems from the statistics. For our purpose, we utilise the framework of
Bell inequalities. We then extend this setup where an arbitrary number of
quantum systems interact via some entangling interaction.
