I know that the answer to the question "What contributed to Estonia having one of the highest per capital income levels in Eastern Europe?" is in "Estonia has had a market economy since the end of the 1990s and one of the highest per capita income levels in Eastern Europe. Proximity to the Scandinavian markets, its location between the East and West, competitive cost structure and a highly skilled labour force have been the major Estonian comparative advantages in the beginning of the 2000s (decade). As the largest city, Tallinn has emerged as a financial centre and the Tallinn Stock Exchange joined recently with the OMX system. The current government has pursued tight fiscal policies, resulting in balanced budgets and low public debt.". Can you tell me what it is?
Ans: location between the East and West, competitive cost structure and a highly skilled labour force

I know that the answer to the question "What gives it away that the Umayyads thought they were God's representatives?" is in "The Umayyads have met with a largely negative reception from later Islamic historians, who have accused them of promoting a kingship (mulk, a term with connotations of tyranny) instead of a true caliphate (khilafa). In this respect it is notable that the Umayyad caliphs referred to themselves not as khalifat rasul Allah ("successor of the messenger of God", the title preferred by the tradition), but rather as khalifat Allah ("deputy of God"). The distinction seems to indicate that the Umayyads "regarded themselves as God's representatives at the head of the community and saw no need to share their religious power with, or delegate it to, the emergent class of religious scholars." In fact, it was precisely this class of scholars, based largely in Iraq, that was responsible for collecting and recording the traditions that form the primary source material for the history of the Umayyad period. In reconstructing this history, therefore, it is necessary to rely mainly on sources, such as the histories of Tabari and Baladhuri, that were written in the Abbasid court at Baghdad.". Can you tell me what it is?
Ans: the Umayyad caliphs referred to themselves not as khalifat rasul Allah ("successor of the messenger of God", the title preferred by the tradition), but rather as khalifat Allah ("deputy of God")

I know that the answer to the question "What context do the 17 laws have?" is in "There are 17 laws in the official Laws of the Game, each containing a collection of stipulation and guidelines. The same laws are designed to apply to all levels of football, although certain modifications for groups such as juniors, seniors, women and people with physical disabilities are permitted. The laws are often framed in broad terms, which allow flexibility in their application depending on the nature of the game. The Laws of the Game are published by FIFA, but are maintained by the International Football Association Board (IFAB). In addition to the seventeen laws, numerous IFAB decisions and other directives contribute to the regulation of football.". Can you tell me what it is?
Ans: containing a collection of stipulation and guidelines

I know that the answer to the question "What is special about the reactions of 1899?" is in "There are many important organozinc compounds. Organozinc chemistry is the science of organozinc compounds describing their physical properties, synthesis and reactions. Among important applications is the Frankland-Duppa Reaction in which an oxalate ester(ROCOCOOR) reacts with an alkyl halide R'X, zinc and hydrochloric acid to the -hydroxycarboxylic esters RR'COHCOOR, the Reformatskii reaction which converts -halo-esters and aldehydes to -hydroxy-esters, the SimmonsSmith reaction in which the carbenoid (iodomethyl)zinc iodide reacts with alkene(or alkyne) and converts them to cyclopropane, the Addition reaction of organozinc compounds to carbonyl compounds. The Barbier reaction (1899) is the zinc equivalent of the magnesium Grignard reaction and is better of the two. In presence of just about any water the formation of the organomagnesium halide will fail, whereas the Barbier reaction can even take place in water. On the downside organozincs are much less nucleophilic than Grignards, are expensive and difficult to handle. Commercially available diorganozinc compounds are dimethylzinc, diethylzinc and diphenylzinc. In one study the active organozinc compound is obtained from much cheaper organobromine precursors:". Can you tell me what it is?
Ans: the Barbier reaction can even take place in water