Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

[EX Q]: Context: Barbeau Abbey (French: Abbaye de Barbeau or Abbaye Notre-Dame de Barbeau; Latin: Barbelum, Sequanae portus or Sacer portus) is a former Cistercian monastery in Fontaine-le-Port in the Seine-et-Marne department, France. 
 Question: What group was Barbeau Abbey a member of?
[EX A]: cistercian

[EX Q]: Context: Recent genome-wide association studies (GWAS) for Caucasians identified several allelic variants associated with increased risk of developing restless legs syndrome (RLS), also known as Willis-Ekbom disease. Although the pathogenic mechanisms of RLS are not entirely understood, it is becoming increasingly evident that many diseases such as RLS can be attributed to an epistasis. The study objectives were to evaluate whether the associations of RLS with all loci determined in previous GWAS for Caucasians can be replicated significantly for the Korean population and to elucidate whether an epistasis plays a role in the pathogenesis of RLS. DNA from 320 patients with RLS and 320 age- and sex-matched controls were genotyped for variants in the RLS loci. A significant association was found for rs3923809 and rs9296249 in BTBD9 (P < 0.0001 and P = 0.001, respectively); the odds ratio (OR) for rs3923809 was 1.61 (P < 0.0001) to 1.88 (P < 0.0001) and the OR for rs9296249 was 1.44 (P = 0.001) to 1.73 (P = 0.002), according to the model of inheritance. The OR for the interaction between rs3923809 in BTBD9 and rs4626664 in PTPRD was 2.05 (P < 0.0001) in the additive model, 1.80 (P = 0.002) in the dominant model and 2.47 (P = 0.004) in the recessive model. There was no significant association between genotypes of all tested single nucleotide polymorphisms and the mean value of serum iron parameters. Our results suggest that the role of BTBD9 in the pathogenesis of restless legs syndrome is more universal across populations than previously reported and more efforts should be focused on the role of epistasis in the genetic architecture of restless legs syndrome. 
 Question: Willis-Ekbom disease is also known as?
[EX A]: restless legs syndrome

[EX Q]: Context: Love is a telephone which always keeps silent when you are longing for a call, but rings when you are not ready for it. As a result, we often miss the sweetness from the other end. Love is a telephone which is seldom program-controlled or directly dialed. You cannot get an immediate answer by a mere "hello", let alone go deep into your lover's heart by one call. Usually it had to be relayed by an operator, and you have to be patient in waiting. _ Love is a telephone which is always busy, When you are ready to die for love, you only find, to your disappointment, the line is already occupied by someone else, and you are greeted only by a busy line. This is an eternal regret handed down from generation to generation and you are only one of those who languish for(...) followers. Love is telephone, but it is difficult to seize the center time for dialing, and you will let the opportunity slip if your call is either too early or too late. Love is a telephone which is not always associated with happiness. Honeyed words are transmitted by sound waves, but when the lovers are brought together, the phone serves no purpose that many lovers observe that marriage is the _ of love. Love is a telephone which, when you use it for the first time, makes you so nervous and excited that you either hold the receiver upside down or dial the wrong number. By the time you've calmed down, you will beat a loss to whom you should make the call. Love is a telephone which often has crossed lines. And this usually happens to you unexpectedly. Your time will either cross or be crossed. Both cases are referred to as "triangle". Fortunately, all such occurrences are transient . 
 Question: What is the best title of the passage?
[EX A]:
love is a telephone