implement behaviour for scalars and collections

[TimoKramer]

The behaviour of the datalog-parser needs to be reviewed and if necessar corrected. See Datascript: tonsky/datascript@5bc0b3e#diff-8cac4d6ab11fc49526253345d91c93d6R711-R726

[kordano]

Yes, we should address that and possibly merge with the datascript parser.