Problem: The Gill family closed the mill in 1968 and sold it to its new owners in 1980 .
The Gill family sold the mill in 1968 and was closed in 1980 by the new owners .
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A: no

Problem: The Clarinda Post Office was opened on 13 September 1911 and reopened in 1971 , when it was developed in 1984 .
Clarinda Post Office opened on 13 September 1911 and reopened in 1971 . When the suburb was developed , it closed in 1984 .
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A: yes

Problem: A lot of trouble later caused Marwan and some of Ali 's supporters who later became Khawarij .
Marwan and some of Ali 's supporters who later became the Khawarij caused a lot of trouble .
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A:
yes