ALINK.csv CBNode.csv ANODE.csv CBLINK.csv InfoSewer Files in the IEDB folder have only 2 Columns, ID and Type.
|A unique identifier for a specific record or row in the file. This could be a sequential number, a randomly generated code, or any other system for identifying individual entries in the file. InfoSewer Element ID.
|A categorical variable that assigns a type or category to each record in the file. This could be used to group similar items together, classify data based on a certain criterion, or any other use case where data needs to be organized by type. Domain or Active