question:
Antibiotics are screened for any negative effects on humans or other mammals before approval for clinical use, and are usually considered safe and most are well tolerated.
What can happen when antibiotics are used with other drugs?

answer: no

question:
Perkin's discovery was prompted by his work with von Hofmann on the substance aniline, derived from coal tar, and it was this breakthrough which sparked the synthetic dye industry, a boom which some historians have labelled the second chemical revolution.
The discovery of the synthetic dye is claimed by some histories to have sparked what event?

answer: yes

question:
The Romans then again defeated the Carthaginians in naval battle at the Battle of the Aegates Islands and left Carthage with neither a fleet nor sufficient coin to raise one.
What battles were initially complete disasters for Rome?

answer: no

question:
door of the east and west, throat of the south and north".
What is the east-west waterway near Nanjing?

answer:
no