Input (grade 13): People who travel and stay away from home for more than a day need lodging for sleep, rest, safety, shelter from cold temperatures or rain, storage of luggage and access to common household functions.
Output (grade 8): People who travel and stay away from home for more than a day need lodging mainly for sleeping. Other purposes are safety, shelter from cold and rain, and to have a place to store luggage and being able to take a shower.