Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Dean ML Acoustic-Electric Guitar, Classic Black
Product description: Leave it to Dean to shun tradition and come up with a beast like this. The The Dean MLCoustic takes Dean's popular ML body shape and turns it into an acoustic-electric. With a mahogany body, rosewood fingerboard and bridge, and fast short-scale neck, the MLCoustic plays like a dream, and is ready to hit the stage with an under-the-saddle Dean buffer preamp., MLCOUSTIC at a Glance, Duncan Dimebucker and Dean humbucker, Floyd Rose Tremolo bridge., Would it really be an ML without the winged headstock?, The Dean ML: Now in Acoustic Dean fans have often requested an acoustic take on the classic ML body shape. Dean listend, and offers up this black beauty. Plug it in or go acoustic--either way it's sure to catch a lot of looks., Mahogany Body Mahogany is a great choice for oddball acoustic shapes like this one. It's a dense wood with a thicker tone, providing very pronounced and resonant midrange frequencies. This means you still get a rich, full-range sound despite the fact that the MLCoustic is anything but traditional., Set Mahogany Neck The set mahogany neck matches the mahogany body, for a full, thick tone with a somewhat compressed attack., The 24-3/4-inch scale neck features a rosewood fingerboard and pearl dot inlays., Dean-Designed Bridge The rosewood bridge features a stylish wing design to match the angles of the MLCoustic., Dean Buffer Preamp Plug in and adjust your tone with the on-board Dean preamp. Features a three-band EQ for dialing in just the right sound and coping with feedback and other annoyances., Dean Tuners Dean's sealed diecast tuners grace the trademark Dean headstock, and ensure you stay in tune no matter how hard you're strumming.
Product feature: ML-style mahogany acoustic body with Classic Black finish, 24-3/4-inch scale, 22-fret mahogany neck with rosewood fingerboard and dot inlays, Dean Buffer Preamp with three-band EQ, Rosewood Dean-Designed bridge, Dean diecast tuning machines
Product brand: Dean Guitars
Target attributes: Guitar Type
Answer: attribute: guitar type
value: acoustic-electric
source: product title
attribute: guitar type
value: acoustic-electric
source: product description