Does the sentence "Drug discovery and development is very expensive; of all compounds investigated for use in humans only a small fraction are eventually approved in most nations by government appointed medical institutions or boards, who have to approve new drugs before they can be marketed in those countries." provide a valid answer to the question "How many drugs were approved in 2007?" OPTIONS:
- yes
- no

A: no

Does the sentence "At the 57th Annual Grammy Awards in February 2015, Beyonce was nominated for six awards, ultimately winning three: Best R&B Performance and Best R&B Song for "Drunk in Love", and Best Surround Sound Album for Beyonce." provide a valid answer to the question "How many awards did Beyonce win at the 57th Annual Grammys?" OPTIONS:
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A: yes

Does the sentence "Prompted by legislation in various countries mandating increased bulb efficiency, new "hybrid" incandescent bulbs have been introduced by Philips." provide a valid answer to the question "How much more efficient are Halogena Energy Saver bulbs compared to incandescents?" OPTIONS:
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A: no

Does the sentence "When the U.S declared war, the U.S. army was still small by European standards and mobilization would take a year." provide a valid answer to the question "The United States built its army prior to joining the war in what way?" OPTIONS:
- yes
- no

A:
no