Does the sentence "The eastern parts of the Frankish kingdoms, especially Germany and Italy, were under continual Magyar assault until the invader's defeat at the Battle of Lechfeld in 955." provide a valid answer to the question "What group was defeated at the Battle of Lechfeld?" OPTIONS:
- yes
- no

A: yes

Does the sentence "In humans and many other mammals, new neurons are created mainly before birth, and the infant brain contains substantially more neurons than the adult brain." provide a valid answer to the question "Which type of cells in the brain are generated throughout your lifetime?" OPTIONS:
- yes
- no

A: no

Does the sentence "One of the primary elements of the culture of the Enlightenment was the rise of the public sphere, a "realm of communication marked by new arenas of debate, more open and accessible forms of urban public space and sociability, and an explosion of print culture," in the late 17th century and 18th century." provide a valid answer to the question "How was the public sphere defined?" OPTIONS:
- yes
- no

A: yes

Does the sentence "The early development of solar technologies starting in the 1860s was driven by an expectation that coal would soon become scarce." provide a valid answer to the question "What slowed the development of solar technologies in the early 20th century?" OPTIONS:
- yes
- no

A:
no