Question: Aline Camboulives specializes in a sport where a significant component of the difficulty comes from what feature of the course? 
Context: Fell running, sometimes known as hill running or mountain running, is the sport of running and racing, off road, over upland country where the gradient climbed is a significant component of the difficulty.  The name arises from the origins of the English sport on the fells of northern Britain, especially those in the Lake District. National (net) wealth, also net wealth (in Singapore), national net worth, gross national wealth (GNW), and total national wealth, is the total sum value of monetary assets minus liabilities of a given nation.  It refers to the total value of wealth possessed by the citizens of a nation at a set point in time.  That is, the total value of wealth and goods generated by all economic activity in a nation.  This figure is an important indicator of a nation's ability to take on debt and sustain spending, and is influenced by not only real estate prices, but also by the stock market, human resources, natural resources, capital technological advancements which may create new assets or render others worthless, national infrastructure and exchange rates.  The most significant component by far among most developed nations is commonly reported as "household net wealth or worth" and reflects infrastructure investment.  National wealth can fluctuate, as evidenced in the US data following the 2008 financial crisis and subsequent economic recovery. The Auburn Free Will Baptist Church is a historic former Baptist church building in Auburn Township, Geauga County, Ohio, United States.  Constructed in the second quarter of the nineteenth century, it is no longer home to the congregation that built it, but it remains a significant component of the area's built environment, and it has been named a historic site. Pathology (from the Greek roots of "pathos" (πάθος ), meaning "experience" or "suffering", and "-logia" (-λογία ), "study of") is a significant component of the causal study of disease and a major field in modern medicine and diagnosis. Aline Camboulives (born 13 July 1973) is a French long distance runner who specialises in mountain running and road running.  Triple French champion of Marathon (2011, 2012 and 2015), she was previously a cyclist, member of the French team in 2002. Tramping music () and tramping song () are the styles of music and songs associated with Czech tramping recreational activity.  Their sound is basically American country music transplanted into Czech language and culture, blended with Czech folk songs.  In particular, Czech bluegrass music is a significant component of the tramping style. Tondi Elektroonika, formerly known as Tallinna Pooljuhttakistite Tehas ("Tallinn Semiconductor Resistor Factory"), Hans Pöögelmanni nimeline Tallinna Raadiotehnika Tehas ("Tallinn Radiotechnical Factory named after Hans Pöögelmann") and Hans Pöögelmanni nimeline Elektrotehnika Tehas ("Hans Pöögelmann Electrotechnical Factory"), as well as "Factory number A-1381" was a factory of electrotechnical components located in Tallinn, Estonia.  It was a significant component of the Soviet Military-industrial complex. Bone sialoprotein (BSP) is a component of mineralized tissues such as bone, dentin, cementum and calcified cartilage.  BSP is a significant component of the bone extracellular matrix and has been suggested to constitute approximately 8% of all non-collagenous proteins found in bone and cementum.  BSP, a SIBLING protein, was originally isolated from bovine cortical bone as a 23-kDa glycopeptide with high sialic acid content. Renewable energy in Palestine is a small but significant component of the national energy mix, accounting for 1.4% of energy produced in 2012.  Palestine has some of the highest rate of solar water heating in the region, and there are a number of solar power projects.  A number of issues confront renewable energy development; a lack of national infrastructure and the limited regulatory framework of the Oslo Accords are both barriers to investment. The New Zealand bellbird ("Anthornis melanura"), also known by its Māori names korimako and makomako, is a passerine bird endemic to New Zealand.  It has greenish colouration and is the only living member of the genus "Anthornis".  The bellbird forms a significant component of the famed New Zealand dawn chorus of bird song that was much noted by early European settlers.  The explorer Captain Cook wrote of its song "it seemed to be like small bells most exquisitely tuned".  Its bell-like song is sometimes confused with that of the tui.  The species is common across much of New Zealand and its offshore islands as well as the Auckland Islands.
Answer: the gradient