Input: Read this: Solar energy may be used in a water stabilisation pond to treat waste water without chemicals or electricity. A further environmental advantage is that algae grow in such ponds and consume carbon dioxide in photosynthesis, although algae may produce toxic chemicals that make the water unusable.
Question: What is a possible negative effect of algae in water stabilization ponds?

Output: toxic chemicals

QUES: In order to qualify for protection, a work must be an expression with a degree of originality, and it must be in a fixed medium, such as written down on paper or recorded digitally. The idea itself is not protected. That is, a copy of someone else's original idea is not infringing unless it copies that person's unique, tangible expression of the idea. Some of these limitations, especially regarding what qualifies as original, are embodied only in case law (judicial precedent), rather than in statutes.

If a work must exclude a degree of originality, what else must it contain to be protected?
What is the answer?
ANS: unanswerable

QUES: Despite the continuing prominence of Nanjing (then known as Jiankang), the settlement of Qiantang, the former name of Hangzhou, remained one of the three major metropolitan centers in the south to provide major tax revenue to the imperial centers in the north China. The other two centers in the south were Jiankang and Chengdu. In 589, Qiangtang was raised in status and renamed Hangzhou.
What was Nanjing formerly known as?

ANS: Jiankang

The Catholic Church prevailed across Europe at this time, influencing not only faith but also wealth and power. Bishops were appointed by the feudal lords (kings, dukes and other landowners) and they often ruled as virtual princes over large estates. The early Medieval periods had seen a rapid growth in monasticism, with several different orders being prevalent and spreading their influence widely. Foremost were the Benedictines whose great abbey churches vastly outnumbered any others in France and England. A part of their influence was that towns developed around them and they became centers of culture, learning and commerce. The Cluniac and Cistercian Orders were prevalent in France, the great monastery at Cluny having established a formula for a well planned monastic site which was then to influence all subsequent monastic building for many centuries.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What types of church were the Benedictines unknown for?
Ah, so.. unanswerable

Question: To prevent this problem, in one implementation of destination control, every user gets an RFID card to identify himself, so the system knows every user call and can cancel the first call if the passenger decides to travel to another destination to prevent empty calls. The newest invention knows even where people are located and how many on which floor because of their identification, either for the purposes of evacuating the building or for security reasons. Another way to prevent this issue is to treat everyone travelling from one floor to another as one group and to allocate only one car for that group.
Try to answer this question if possible: What is one way to implement destination control?
Answer: every user gets an RFID card to identify himself

QUES: At her subsequent trial, the case against Tulisa collapsed at Southwark Crown Court in July 2014, with the judge commenting that there were "strong grounds" to believe that Mahmood had lied at a pre-trial hearing and tried to manipulate evidence against the co-defendant Tulisa. Tulisa was cleared of supplying Class A drugs. After these events, The Sun released a statement saying that the newspaper "takes the Judge's remarks very seriously. Mahmood has been suspended pending an immediate internal investigation."
What type of drugs was Tulisa accused of supplying?

ANS:
Class A drugs