218913
Her father was a successful businessman , initially in engineering , and later in the development of oilfield s in Mexico , the production of munitions for the First World War , building the Sennar Dam on the River Nile , as well as coal mining and newspaper publishing .
 Mexico
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mexico