Does the sentence "Richard's policy on the continent was to attempt to regain through steady, limited campaigns the castles he had lost to Philip II whilst on crusade." provide a valid answer to the question "Richard withdrew what towards John?" OPTIONS:
- yes
- no

A: no

Does the sentence "Some of these estimates also take into account the opportunity cost of investing capital many years before revenues are realized (see Time-value of money)." provide a valid answer to the question "What accounts for nearly half of the costs to develop drugs?" OPTIONS:
- yes
- no

A: yes

Does the sentence "With a change in administration and charges of conflict of interest (on both sides) arising from the original trial, the US Attorney General dropped the lawsuit on November 30, 1897 leaving several issues undecided on the merits." provide a valid answer to the question "How many years did Bell and the US Government fight in court?" OPTIONS:
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- no

A: yes

Does the sentence "The FAA became more involved with the environmental aspects of aviation in 1968 when it received the power to set aircraft noise standards." provide a valid answer to the question "What is the altitude which the FAA regulates over?" OPTIONS:
- yes
- no

A:
no