Does the sentence "Abstract properties of Galois groups associated with polynomials (in particular their solvability) give a criterion for polynomials that have all their solutions expressible by radicals, i.e. solutions expressible using solely addition, multiplication, and roots similar to the formula above." provide a valid answer to the question "What degree does not include simple formulas for cubic and quatric equations?"

A: no

Does the sentence "Hunyadi succeeded during the Siege of Belgrade in 1456 against the Ottomans, the biggest victory against that empire in decades." provide a valid answer to the question "In what year was the Siege of Belgrade fought?"

A: yes

Does the sentence "Electronic warfare aircraft are used to keep airspaces friendly, and send critical information to anyone who needs it." provide a valid answer to the question "What is the purpose of electronic warfare?"

A: no

Does the sentence "Major air bases are located in British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, Nova Scotia, and Newfoundland and Labrador, while administrative and command and control facilities are located in Winnipeg and North Bay." provide a valid answer to the question "Where is the Canadian component of the NATO located?"

A:
no