Who makes The Portland Loo?
Portland Loo
{'answer_start': array([52]), 'answer_text': array(['Madden Fabrication'], dtype=object)}
The Portland Loo is a public toilet system built by Madden Fabrication in Portland, Oregon.[1][2]  It has been adopted by multiple other municipalities.  The "flagship toilet" is in Portland's Old Town Chinatown neighborhood.[3]