The Four Platforms: The Traveler With the Trunk, the Traveler Reading a Manual, and the Traveler Holding a Sleeper Ticket

Four platforms stand in a row, numbered 1 to 4 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 holding a day-return ticket is the traveler bound for Geneva. 2. The traveler bound for Porto is directly next to the traveler holding a standard ticket. 3. The traveler with the trunk is somewhere to the left of the traveler bound for Porto. 4. The traveler holding a rail pass is somewhere to the left of the traveler holding a sleeper ticket. 5. The traveler with the duffel bag is not the traveler bound for Vienna. 6. The traveler bound for Kraków is directly next to the traveler with the suitcase. 7. The traveler with the trunk is the traveler reading a manual. 8. The traveler with the trunk is immediately to the left of the traveler with the guitar case. 9. The traveler reading a manual is somewhere to the left of the traveler reading a newspaper. 10. The traveler reading a guidebook is the traveler holding a sleeper ticket. 11. The traveler reading a novel is the traveler bound for Kraków. 12. The traveler with the guitar case is the traveler holding a standard ticket.