125441
During an intermediate phase of the conversion of the Port Pirie to Marree railway from a narrower gauge to a standard gauge , train lengths of standard gauge flat wagons were fitted with narrow gauge rails , to allow a narrow gauge coal trains to by pass the difficult Flinders Ranges then affected by washaways .
 Port Pirie, Marree, Flinders Ranges
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Port Pirie, Marree, Flinders Ranges