Does the sentence "Argentina: The torch relay leg in Buenos Aires, Argentina, held on April 11, began with an artistic show at the Lola Mora amphitheatre in Costanera Sur." provide a valid answer to the question "Where did the torch route start in Buenos Aires?"

A: yes

Does the sentence "According to the Hebrew Bible narrative, Jewish ancestry is traced back to the Biblical patriarchs such as Abraham, Isaac and Jacob, and the Biblical matriarchs Sarah, Rebecca, Leah, and Rachel, who lived in Canaan around the 18th century BCE." provide a valid answer to the question "Name one person that Jewish ancestry traced back to?"

A: yes

Does the sentence "This may be modified by adding low-density materials such as boron, which lowers the index of refraction (see crown glass), or increased (to as much as 1.8) with high-density materials such as (classically) lead oxide (see flint glass and lead glass), or in modern uses, less toxic oxides of zirconium, titanium, or barium." provide a valid answer to the question "What can be used to make glass less refractive?"

A: yes

Does the sentence "Meanwhile, the Ottoman Sultan negotiated with Mehmet Ali of Egypt, who agreed to send his son Ibrahim Pasha to Greece with an army to suppress the revolt in return for territorial gain." provide a valid answer to the question "Who did Egypt send to Greece with an Army?"

A:
yes