16039
To the south , the Po Valley is accessible by a lowland route down the valley of the river Ticino and by Lake Maggiore .
 Po Valley, Ticino, Lake Maggiore
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Po Valley, Ticino, Lake Maggiore