Does the sentence "Straddling the intersection of Germanic and Romance Europe, Switzerland comprises four main linguistic and cultural regions: German, French, Italian and Romansh." provide a valid answer to the question "What do the French Swiss call Switzerland?" OPTIONS:
- yes
- no

A: no

Does the sentence "Multi-party elections have been held since 1992, although a democratically elected government was ousted in the 1997 Republic of the Congo Civil War and President Denis Sassou Nguesso has ruled for 26 of the past 36 years." provide a valid answer to the question "What title does Nguesso hold?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Humans regard certain insects as pests, and attempt to control them using insecticides and a host of other techniques." provide a valid answer to the question "By what method do humans often try to control the spread of insects?" OPTIONS:
- yes
- no

A: yes

Does the sentence "It was at Port Said that Nasser saw a confrontation with the invading forces as being the strategic and psychological focal point of Egypt's defense." provide a valid answer to the question "How many Egyptians died in the battle for Port Said?" OPTIONS:
- yes
- no

A:
no