Distribution of the inputs (blue) and the outputs (red) in the training dataset. For Y_proto the solid blue line is the determined value and the dashed blue lines represent the uncertainty (Serenelli & Basu 2010). The solid black lines are Juno-derived values (Durante et al. 2020). We note that some of the histogram bins for the outputs are not visible due to the high frequency of the proximate to Juno models. We refer readers to Table B.1 and the x-axis range for the full range of the dataset.