Random triples
| Subject | Object |
|---|---|
| gptkb:Mass-Observation | written diaries |
| gptkb:Mass_Observation | questionnaires |
| gptkb:Mass-Observation | observational reports |
| gptkb:Mass_Observation | observational reports |
| gptkb:Mass-Observation | questionnaires |
| gptkb:Mass_Observation | written diaries |