Problem: Mercer was the brother of Charles Fenton Mercer , and father of George Mercer and John Francis Mercer .
Mercer was the brother of George Mercer , John Francis Mercer and father of Charles Fenton Mercer .
OPTIONS:
- no
- yes
-+-
A: no

Problem: Originally described in 1879 from specimens collected in New Zealand as pests of kangaroo acacia , it is now found worldwide where citrus crops are grown .
Originally collected in 1879 by specimens described in New Zealand as pests of kangaroo acacia , it is now found worldwide where citrus fruits are grown .
OPTIONS:
- no
- yes
-+-
A: no

Problem: The standard gauge line followed a new alignment through the Avon Valley of the Darling Scarp east of Perth .
The standard gauge line followed a new orientation through the Avon valley of Darling Scarp east of Perth .
OPTIONS:
- no
- yes
-+-
A:
yes