Does the sentence "A Polish nobleman living at the time prior to the 15th century was referred to as a "rycerz", very roughly equivalent to the English "knight," the critical difference being the status of "rycerz" was almost strictly hereditary; the class of all such individuals was known as the "rycerstwo"." provide a valid answer to the question "WHat was a polish nobleman referred to as before the 15th century?"

A: yes

Does the sentence "In fact, the Buddha rejected both of the metaphysical assertions "I have a Self" and "I have no Self" as ontological views that bind one to suffering.[note 9]" provide a valid answer to the question "In what form is anatta not meant as a metaphysical assertion?"

A: no

Does the sentence "As obligations in international law are traditionally viewed as arising only from the consent of states, many treaties expressly allow a state to withdraw as long as it follows certain procedures of notification." provide a valid answer to the question "What is the only barrier to withdrawal contained in many treaties?"

A: yes

Does the sentence "Knowledge of the protective antigens and specific acquired host immune factors is more complete for primary pathogens than for opportunistic pathogens." provide a valid answer to the question "What does herd immunity offer to vulnerable people when a large enough proportion of the population has acquired immunity?"

A:
no