Problem: Armstrong had at least one sibling , a sister , Lydia Lawhead .
Lydia Lawhead had at least one sibling , one sister , Mrs. Armstrong .
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A: no

Problem: Aeroflot Flight 415 ( '' Reys 415 Aeroflota '' ) was a domestic scheduled passenger flight operated by Aeroflot from Simferopol to Sochi with a stopover in Lviv .
Aeroflot Flight 415 ( '' Reys 415 Aeroflota '' ) was a domestic passenger flight from Aeroflot from Simferopol to Sochi with a stopover in Lviv .
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A: yes

Problem: Comdial was acquired in September 2005 by Vertical Communications .
In September 2005 , Comdial was acquired by Vertical Communications .
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A:
yes