Training data set transforms and persists in AI/ML model, and have secondary value which is different from its original data set.
As traditional data trading model and contract does not assume the use of data for AI/ML whose usage and technology are very different compare to traditional usage. Thus data holders and consumers are holding risks that are not well known.
When using external data for AI/ML training, the provenance of data including accountability (product liability) must be considered in addition to intellectual property (patents, copyrights, design rights, trademark rights).