Does the sentence "The treaty of Guadalupe Hidalgo was signed in what is now the far north of the city." provide a valid answer to the question "What treaty was signed?" OPTIONS:
- yes
- no

A: yes

Does the sentence "A minority of Valencian scholars active in fields other than linguistics defends the position of the Royal Academy of Valencian Culture (Academia de Cultura Valenciana, RACV), which uses for Valencian a standard independent from Catalan." provide a valid answer to the question "Who uses a Valencian standard separate from Catalan?" OPTIONS:
- yes
- no

A: yes

Does the sentence "In 1872, Russian Alexander Lodygin invented an incandescent light bulb and obtained a Russian patent in 1874." provide a valid answer to the question "Who patented an incandescent light bulb in Russia in 1874?" OPTIONS:
- yes
- no

A: yes

Does the sentence "However, Jef Raskin had adopted the Macintosh spelling by 1981, when the Macintosh computer was still a single prototype machine in the lab." provide a valid answer to the question "What was Jef Raskin's profession?" OPTIONS:
- yes
- no

A:
no