Does the sentence "Even more importantly, forward compatibility is ensured as software that recognizes only 7-bit ASCII characters as special and does not alter bytes with the highest bit set (as is often done to support 8-bit ASCII extensions such as ISO-8859-1) will preserve UTF-8 data unchanged." provide a valid answer to the question "How many of the symbols are the same in the beginning of the ASCII and Unicode?"

A: no

Does the sentence "The Multidimensional Pain Inventory (MPI) is a questionnaire designed to assess the psychosocial state of a person with chronic pain." provide a valid answer to the question "How many classes of chronic pain patients are there?"

A: no

Does the sentence "Outside the central-southern area of Namibia (known as the "Police Zone" since the German era and which contained the main towns, industries, mines and best arable land), the country was divided into "homelands", the version of South African bantustan applied to Namibia, although only a few were actually established because indigenous Namibians often did not cooperate." provide a valid answer to the question "Which guerrilla group fought for Namibia's independence?"

A: no

Does the sentence "He tentatively wrote of his ideas to Lyell in January 1842; then in June he roughed out a 35-page "Pencil Sketch" of his theory." provide a valid answer to the question "Who did Darwin write his ideas to in 1842?"

A:
yes