Input: Annelid
The brain generally forms a ring round the pharynx (throat), consisting of a pair of ganglia (local control centers) above and in front of the pharynx, linked by nerve cords either side of the pharynx to another pair of ganglia just below and behind it. The brains of polychaetes are generally in the prostomium, while those of clitellates are in the peristomium or sometimes the first segment behind the peristomium. In some very mobile and active polychaetes the brain is enlarged and more complex, with visible hindbrain, midbrain and forebrain sections. The rest of the central nervous system is generally "ladder-like", consisting of a pair of nerve cords that run through the bottom part of the body and have in each segment paired ganglia linked by a transverse connection. From each segmental ganglion a branching system of local nerves runs into the body wall and then encircles the body. However, in most polychaetes the two main nerve cords are fused, and in the tube-dwelling genus Owenia the single nerve chord has no ganglia and is located in the epidermis.

What are ganglia?
Output: local control centers

Input: Middle Ages
In the 12th and 13th centuries, Europe produced economic growth and innovations in methods of production. Major technological advances included the invention of the windmill, the first mechanical clocks, the manufacture of distilled spirits, and the use of the astrolabe. Concave spectacles were invented around 1286 by an unknown Italian artisan, probably working in or near Pisa.

What was invented in approximately 1286?
Output: Concave spectacles

Input: Philadelphia
Rowing has been popular in Philadelphia since the 18th century. Boathouse Row is a symbol of Philadelphia's rich rowing history, and each Big Five member has its own boathouse. Philadelphia hosts numerous local and collegiate rowing clubs and competitions, including the annual Dad Vail Regatta, the largest intercollegiate rowing event in the U.S, the Stotesbury Cup Regatta, and the Head of the Schuylkill Regatta, all of which are held on the Schuylkill River. The regattas are hosted and organized by the Schuylkill Navy, an association of area rowing clubs that has produced numerous Olympic rowers.

Where are these races held?
Output: Schuylkill River

Input: Wood
Wood unsuitable for construction in its native form may be broken down mechanically (into fibers or chips) or chemically (into cellulose) and used as a raw material for other building materials, such as engineered wood, as well as chipboard, hardboard, and medium-density fiberboard (MDF). Such wood derivatives are widely used: wood fibers are an important component of most paper, and cellulose is used as a component of some synthetic materials. Wood derivatives can also be used for kinds of flooring, for example laminate flooring.

What material results from chemically breaking down wood?
Output:
cellulose