Problem: What is the question to: "With roots in blues rock and psychedelic rock , the bands that created heavy metal developed a thick, massive sound, characterized by highly amplified distortion , extended guitar solos, emphatic beats, and overall loudness."? The topic is Heavy metal music.

A: "what is metal music about?"

Problem: What is the question to: "Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location."? The topic is Dredging.

A: "how does a dredge work??"

Problem: What is the question to: "Currently Vietnam is the world's largest producer and exporter of pepper, producing 34% of the world's Piper nigrum crop as of 2008."? The topic is Black pepper.

A: "where does ground pepper come from?"

Problem: What is the question to: "Mara Salvatrucha (commonly abbreviated as MS, Mara, and MS-13) is a transnational criminal gang that originated in Los Angeles and has spread to other parts of the United States, Canada, Mexico, and Central America."? The topic is MS-13.

A:
"where was ms-13 originally from?"