[{"text":"visitor research and orientation","link":"\/exponatec-cologne-exhibitors\/list-of-exhibitors\/?route=aussteller\/index&&tab=1&haupt=004","children":{"004005":{"text":"Museum education","link":"\/exponatec-cologne-exhibitors\/list-of-exhibitors\/?route=aussteller\/index&&tab=1&haupt=004","children":null}}}]