Just seven months into his term, Tsipras lost his majority in parliament after far-left rebels in his party opposed tough new conditions demanded by Eurozone countries for the 86 billion euro rescue package: Hikes in sales and business taxes, changes to public administration and labor laws opposed by unions, and further pension cuts to address the country's dramatically aging population.
Refer to the input text as context and select the correct relationship between 'Eurozone' and 'euro' from the available options.
Options: founded by, business division, location of formation, currency