Problem: Their most common colors are white , although other rarer colors such as red , blue , yellow , and green have been seen or mentioned .
Their most common colors are red , blue , yellow and green , even though other rarer colors , such as white , have been seen or mentioned .
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A: no

Problem: In the TV series , Olaf Petersen is played by Mark Williams .
Mark Williams is played by Olaf Petersen in the television series .
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A: no

Problem: Although the ruins were discovered by Samuel Alejandro Lafone Quevedo in 1888 , they were first investigated in 1897 by the archaeologist Juan Bautista Ambrosetti .
Although the ruins were examined in 1888 by Samuel Alejandro Lafone Quevedo , they were first discovered in 1897 by the archaeologist Juan Bautista Ambrosetti .
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A:
no