Does the sentence "The Norman frontiers had limited natural defences but were heavily reinforced with castles, such as Chateau Gaillard, at strategic points, built and maintained at considerable expense." provide a valid answer to the question "What castle was built at a strategic point?" OPTIONS:
- yes
- no

A: yes

Does the sentence "The design of the Institute's Mycenean lions medal and the motto 'Usui civium, decori urbium' has been attributed to Thomas Leverton Donaldson, who had been honorary secretary until 1839." provide a valid answer to the question "Who reworked the Royal Institute's medal desgin in 1931?" OPTIONS:
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A: no

Does the sentence "It was complemented by a program called "Grand Challenges Explorations" (2011 to 2013 with some follow-up grants reaching until 2015) which involved grants of US$100,000 each in the first round." provide a valid answer to the question "WHat program compliment reinvent the toilet" OPTIONS:
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A: yes

Does the sentence "She agreed to visit the gardens of the Royal Horticultural Society at Kensington and take a drive through London in an open carriage." provide a valid answer to the question "Where did Victoria visit after Leopold advised her to make more public appearances?" OPTIONS:
- yes
- no

A:
yes