Does the sentence "Sarah Trimmer wrote a successful natural history textbook for children titled The Easy Introduction to the Knowledge of Nature (1782), which was published for many years after in eleven editions." provide a valid answer to the question "Who wrote a successful natural history textbook for children titled The Easy Introduction to the Knowledge of Nature (1782)?"

A: yes

Does the sentence "The Syndicat des transports d'Ile-de-France (STIF), formerly Syndicat des transports parisiens (STP), oversees the transit network in the region." provide a valid answer to the question "Who oversees the transit network in Paris?"

A: yes

Does the sentence "The Kingdom of Prussia became the leading state of the German Empire after its creation in 1871." provide a valid answer to the question "What year did the Kingdom of Prussia become the leading state of the German Empire?"

A: yes

Does the sentence "It first invaginates to form a gastrula with a digestive chamber, and two separate germ layers an external ectoderm and an internal endoderm." provide a valid answer to the question "What do the external ectoderm and an internal endoderm layers develop into?"

A:
no