Problem: When Cunningham met Geoffrey de Havilland he was summoned to a hangar .
When Geoffrey de Havilland met Cunningham , he was invited to a hangar .
OPTIONS:
- no
- yes
-+-
A: no

Problem: Caspar David Friedrich was born on 5 September 1774 in Greifswald , Pomerania , Sweden , on the Baltic coast of Germany .
Caspar David Friedrich was born on 5 September 1774 , in Greifswald , Swedish Pomerania , on the Baltic coast of Germany .
OPTIONS:
- no
- yes
-+-
A: yes

Problem: The Valea Mare river is a tributary of the Moldova River in Romania .
The Moldova River is a right tributary of the Valea Mare River in Romania .
OPTIONS:
- no
- yes
-+-
A:
no