Problem: Please answer a question about the following article about Department store:
Parkson enters by acquiring local brand Centro Department Store in 2011. Centro still operates for middle market while the 'Parkson' brand itself, positioned for middle-up segment, enters in 2014 by opening its first store in Medan, followed by its second store in Jakarta. Lotte, meanwhile, enters the market by inking partnership with Ciputra Group, creating what its called 'Lotte Shopping Avenue' inside the Ciputra World Jakarta complex, as well as acquiring Makro and rebranding it into Lotte Mart.
Who did Lotte partner with? 
A: Ciputra Group
Problem: Please answer a question about the following article about Portugal:
The poor performance of the Portuguese economy was explored in April 2007 by The Economist, which described Portugal as "a new sick man of Europe". From 2002 to 2007, the number of unemployed increased by 65% (270,500 unemployed citizens in 2002, 448,600 unemployed citizens in 2007). By early December 2009, the unemployment rate had reached 10.2% – a 23-year record high. In December 2009, ratings agency Standard & Poor's lowered its long-term credit assessment of Portugal to "negative" from "stable," voicing pessimism on the country's structural weaknesses in the economy and weak competitiveness that would hamper growth and the capacity to strengthen its public finances and reduce debt. In July 2011, ratings agency Moody's downgraded its long-term credit assessment of Portugal after warning of deteriorating risk of default in March 2011.
Between 2002 and 2007, by what percentage did the rate of unemployment change?
A: 65%
Problem: Please answer a question about the following article about Elevator:
Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.
What problem arises for fast and large capacity elevators?
A: the need for infinitely variable speed control over the traction machine
Problem: Please answer a question about the following article about Circadian rhythm:
Circadian rhythms allow organisms to anticipate and prepare for precise and regular environmental changes. They thus enable organisms to best capitalize on environmental resources (e.g. light and food) compared to those that cannot predict such availability. It has therefore been suggested that circadian rhythms put organisms at a selective advantage in evolutionary terms. However, rhythmicity appears to be as important in regulating and coordinating internal metabolic processes, as in coordinating with the environment. This is suggested by the maintenance (heritability) of circadian rhythms in fruit flies after several hundred generations in constant laboratory conditions, as well as in creatures in constant darkness in the wild, and by the experimental elimination of behavioral, but not physiological, circadian rhythms in quail.
What can an organism that uses circadian rhythms use to its advantage that others can not?
A:
resources