Problem: There are 22 species in the genera , 17 species have a dextral shell and 5 species are sinistral .
There are 22 species in the genera , 17 species have a sinistral shell and 5 species are dextral .
-+-
A: no

Problem: He continued in this post also when Winston Churchill came to power in 1940 , and was then Postmaster General under Churchill between 1943 and 1945 .
He also continued this post when Winston Churchill came to power in 1940 , and was Churchill 's general postmaster between 1943 and 1945 .
-+-
A: yes

Problem: Part of the barley is roasted to give Guinness its dark colour and characteristic taste .
A portion of the barley is roasted to give Guinness its dark colour and characteristic taste .
-+-
A:
yes