Hi all, While parsing the disclosed Building Block (BB) files for the DEL library, we observed several entries listed as simple ionic species. As an example library qDOS18_3 has these species for building blocks for cycle 3 IDs 551 and 552 Since free ions do not typically participate as covalent building blocks in DEL synthesis, could you provide some context on their presence in these files? * Are these entries artifacts from vendor SMILES files (e.g., unstripped salt fragments) that should be pre-filtered during preprocessing? * Alternatively, do these entries serve a specific role in the reaction rules or enumeration pipeline that we should account for? Thank you for the clarification!