The Five Platforms: Jonas, Mateo, Keiko, Luca, and Priya

Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The traveler with the duffel bag is immediately to the right of the traveler holding a standard ticket. 2. The traveler holding a sleeper ticket is immediately to the left of Luca. 3. The traveler with the duffel bag is somewhere to the left of Jonas. 4. The traveler reading a newspaper is immediately to the left of the traveler with the suitcase. 5. The traveler bound for Bruges is directly next to the traveler reading a manual. 6. Luca is immediately to the left of the traveler holding a day-return ticket. 7. The traveler with the backpack is not the traveler bound for Geneva. 8. The traveler reading a manual is somewhere to the left of the traveler bound for Kraków. 9. The traveler holding a day-return ticket is directly next to the traveler holding a first-class ticket. 10. The traveler reading a manual is somewhere to the left of the traveler holding a group fare. 11. The traveler holding a sleeper ticket is somewhere to the left of the traveler reading a comic. 12. The traveler bound for Prague is not the traveler reading a manual. 13. The traveler bound for Geneva is immediately to the right of the traveler with the trunk. 14. The traveler holding a day-return ticket is not the traveler bound for Vienna. 15. The traveler reading a comic is somewhere to the left of the traveler bound for Prague. 16. The traveler reading a newspaper is immediately to the left of the traveler bound for Prague. 17. The traveler holding a sleeper ticket is somewhere to the left of the traveler with the duffel bag. 18. The traveler bound for Geneva is immediately to the right of Mateo. 19. The traveler reading a novel is directly next to Priya. 20. The traveler bound for Vienna is somewhere to the left of Priya.