question:
The apparently sudden appearance of nearly modern flowers in the fossil record initially posed such a problem for the theory of evolution that it was called an "abominable mystery" by Charles Darwin.
What relationship proposed on the basis of morphological evidence has recently been disputed?

answer: no

question:
Prince Henry the Navigator, son of King Joao I, became the main sponsor and patron of this endeavour.
Who was the Father of Prince Henry the Navigator?

answer: yes

question:
Another implementation is a so-called physical firewall which consists of a separate machine filtering network traffic.
What type of machines normall have a firewall?

answer: no

question:
An elevator is essentially a platform that is either pulled or pushed up by a mechanical means.
What is another name for an elevator shaft?

answer:
no