Is the maximum number of layers actually 4?

Hi,

Thanks for a very good benchmarking suite! I scoured the training data briefly and could not find a instance where the number of layers were above 4. Is there a typo in the README?

Start by reading the README section that states the maximum number of layers, then inspect the training data for examples with more than four layers. Done means confirming whether the README is accurate and correcting or clarifying the documentation if it is not.

Written by the indexing model from the issue text.