Q: Does "The first and so far only object identified as associated with Neptune's trailing L5 Lagrangian point is 2008 LC18." provide a valid answer to "What is the only object identified with Neptune's trailing L5 Lagrangian point?"?
A: yes

Q: Does "There may be no motion in stagnant areas; for example, in parts of Alaska, trees can establish themselves on surface sediment deposits." provide a valid answer to "Why are some glaciers stagnant in Alaska?"?
A: yes

Q: Does "While the run was a contributing factor in the timing of IndyMac's demise, the underlying cause of the failure was the unsafe and unsound manner in which the thrift was operated." provide a valid answer to "What was the value of loans IndyMac was forced to hold when the secondary mortgage market collapsed in late 2007?"?
A: no

Q: Does "Even the Zhonghua Zihai does not include characters in the Chinese family of scripts created to represent non-Chinese languages." provide a valid answer to "What does not include characters in the Chinese family?"?
A:
yes