Please answer this: Information: - The Apache Commons is a project of the Apache Software Foundation, formerly under the Jakarta Project. The purpose of the Commons is to provide reusable, open source Java software. The Commons is composed of three parts: proper, sandbox, and dormant. - Apache Jelly is a Java and XML based scripting and processing engine for turning XML into executable code . Jelly is a component of Apache Commons . Custom XML languages are commonly created to perform some kind of processing action . Jelly is intended to provide a simple XML based processing engine that can be extended to support various custom actions . - In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The W3C's XML 1.0 Specification and several other related specificationsall of them free open standardsdefine XML. - The Jakarta Project created and maintained open source software for the Java platform. It operated as an umbrella project under the auspices of the Apache Software Foundation, and all Jakarta products are released under the Apache License. As of December 21, 2011 the Jakarta project was retired because no subprojects were remaining. - An open standard is a standard that is publicly available and has various rights to use associated with it, and may also have various properties of how it was designed (e.g. open process). There is no single definition and interpretations vary with usage. What entity does 'apache jelly' has the relation 'license' with?
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Answer: apache license

Q: Information: - Free jazz is an approach to jazz music that was first developed in the 1950s and 1960s as musicians attempted to alter, extend, or break down jazz convention, often by discarding fixed chord changes or tempos. Though the music of free jazz composers varied widely, a common feature was dissatisfaction with the limitations of bebop, hard bop, and modal jazz that had developed in the 1940s and 1950s. Often described as avant-garde, free jazz has also been described as an attempt to return jazz to its primitive, often religious, roots and emphasis on collective improvisation. - Burton Greene ( born June 14 , 1937 ) is a free jazz pianist born in Chicago , Illinois , though most known for his work in New York City . He has explored a variety of genres , including avant - garde jazz and the Klezmer medium . - Hard bop is a subgenre of jazz that is an extension of bebop (or "bop") music. Journalists and record companies began using the term in the mid-1950s to describe a new current within jazz which incorporated influences from rhythm and blues, gospel music, and blues, especially in saxophone and piano playing. What entity does 'burton greene' has the relation 'instrument' with?
A:
piano