TASK DEFINITION: In this task, you are given a sentence in either Spanish or English. Your task is to determine the language of the input sentence. Input sentences can only be in Spanish or English, and they cannot be in two languages ​​at the same time.
PROBLEM: It is an important instrument for future environmental policy.

SOLUTION: English

PROBLEM: This should, first and foremost, be placed within a broader context.

SOLUTION: English

PROBLEM: Firstly, confusion should not be allowed about the definition of 'mixed municipal waste' in the context of co-incineration.

SOLUTION:
English