Metadata entity category	Property name in data file	Standard property name in metadata file
Protein	LigandAnnotID	PR_Center_Canonical_ID
Unclassified Perturbagen	LigandAnnotID	UP_Center_Canonical_ID
Protein	ECMpAnnotID	PR_Center_Canonical_ID
Other Reagent	ECMpAnnotID	OR_Center_Canonical_ID
Cell Line	CellLine	CL_Name
