Fig. 1.

In this figure we present an illustrative example of how the information contained in a structured supplement parallels the layout of the main text of a paper. Each section in the supplement has the prefix ∑, denoting a supplementary section. Supplementary subsections that parallel main subsections are denoted by ∥, while those that are only in the supplement are labeled as ∦. Parallel sections in the supplement can also have multiple alternative versions, such as the “high level” version and the “technical language” version