A recent example of an inaccuracy in adapting the source to the target domain of experimental XRD spectra involved an autonomous materials discovery laboratory . The lab synthesized 36 compositionally ordered compounds using data from Google DeepMind's GNoME database which were thought to be novel 129 . However, an analysis of the synthesized ordered compounds found that more than two thirds were identical to existing disordered analogues of the same compounds not represented in the source domain