QUES: Q: Which area of North Africa has hosted Greek communities in the past?
A: Greek colonies and communities have been historically established on the shores of the Mediterranean Sea and Black Sea, but the Greek people have always been centered around the Aegean and Ionian seas, where the Greek language has been spoken since the Bronze Age.
Does the answer answer the question?

ANS: no

QUES: Q: The Mahayana teachings were first propagated into China by who?
A: These Mahayana teachings were first propagated into China by Lokaksema, the first translator of Mahayana sutras into Chinese during the 2nd century CE.[note
Does the answer answer the question?

ANS: yes

QUES: Q: What is the average property price per square meter in Berlin as of April 2014?
A: This is higher than the property prices in other G8 European capital cities; Berlin 3,306, Rome 6,188 and Paris 11,229.
Does the answer answer the question?

ANS: yes

QUES: Q: What made Pacinotti's motor an important advancement?
A: A major turning point in the development of DC machines took place in 1864, when Antonio Pacinotti described for the first time the ring armature with its symmetrically grouped coils closed upon themselves and connected to the bars of a commutator, the brushes of which delivered practically non-fluctuating current.
Does the answer answer the question?

ANS:
yes