Does the sentence "Strategies employed by O.W. Wilson included rotating officers from community to community to reduce their vulnerability to corruption, establishing of a non-partisan police board to help govern the police force, a strict merit system for promotions within the department, and an aggressive recruiting drive with higher police salaries to attract professionally qualified officers." provide a valid answer to the question "Where did Wilson reduce police corruption?"

A: no

Does the sentence "Service was compulsory for all of men of military age, and thus Prussia and its North and South German allies could mobilise and field some 1,000,000 soldiers in time of war." provide a valid answer to the question "What is an example of a German encirclement battle?"

A: no

Does the sentence "Meanwhile, the first true mammals evolve, but remained relatively small sized." provide a valid answer to the question "What other order evolved during the Jurassic?"

A: yes

Does the sentence "Exported services amount to a third of exports." provide a valid answer to the question "What accounts for 16.9% of Switzerland's exported goods?"

A:
no