In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Example Input: What is a prerequisite for weight to play a factor in conductivity?, Context: While inert gas reduces filament evaporation, it also conducts heat from the filament, thereby cooling the filament and reducing efficiency. At constant pressure and temperature, the thermal conductivity of a gas depends upon the molecular weight of the gas and the cross sectional area of the gas molecules. Higher molecular weight gasses have lower thermal conductivity, because both the molecular weight is higher and also the cross sectional area is higher. Xenon gas improves efficiency because of its high molecular weight, but is also more expensive, so its use is limited to smaller lamps.
Example Output: constant pressure and temperature

Example Input: Which happened earlier, the trio began playing together or the Cubs won the pennant four times between 1906 and 1910?, Context: "Baseball's Sad Lexicon," also known as "Tinker to Evers to Chance" after its refrain, is a 1910 baseball poem by Franklin Pierce Adams. The poem is presented as a single, rueful stanza from the point of view of a New York Giants fan seeing the talented Chicago Cubs infield of shortstop Joe Tinker, second baseman Johnny Evers, and first baseman Frank Chance complete a double play. The trio began playing together with the Cubs in 1902, and formed a double play combination that lasted through April 1912. The Cubs won the pennant four times between 1906 and 1910, often defeating the Giants en route to the World Series.
Example Output: The trio began playing together

Example Input: What is the second component of the web browsers mentioned in the text?, Context: Web browsers consist of a user interface, layout engine, rendering engine, JavaScript interpreter, UI backend, networking component and data persistence component. These components achieve different functionalities of a web browser and together provide all capabilities of a web browser.
Example Output:
layout engine