TASK DEFINITION: Translate the given Spanish text to English
PROBLEM: The invention relates to a method of producing a yoghurt-based product.

SOLUTION: Se describe un método para producir un producto a base de yogur.

PROBLEM: ii.

SOLUTION: ii.

PROBLEM: Subterranean operations include methods of cementing well bores.

SOLUTION:
Las operaciones subterráneas incluyen métodos para cementar sondeos.