user: Where do black walnut trees grow?

assistant: <think>
Juglans nigra, the eastern American black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to North America. It grows mostly in riparian zones, from southern Ontario, west to southeast South Dakota, south to Georgia, northern Florida and southwest to central Texas. Wild trees in the upper Ottawa Valley may be an isolated native population or may have derived from planted trees.</think>
North America from southern Ontario, west to southeast South Dakota, south to Georgia, northern Florida and southwest to central Texas.

user: Where is the village of Congosto

assistant: <think>
Congosto (Spanish pronunciation: [koŋˈɡosto]) is a village and municipality located in the region of El Bierzo (province of León, Castile and León, Spain) . It is located near to Ponferrada, the capital of the region. The village of Congosto has about 350 inhabitants.

Its economy was traditionally based on agriculture, wine and coal mining. Nowadays, most of the inhabitants work on the surrounding area on activities such as wind turbine manufacturing or coal mining.

Congosto also a large reservoir in its vicinity, the Barcena reservoir, to which many tourists visit during the summer.</think>
Congosto is a village and municipality located in the region of El Bierzo (province of Leon, Castile and Leon, Spain). It is located near to Ponferrada, the capital of the region. The village of Congosto has about 350 inhabitants.

Its economy was traditionally based on agriculture, wine and coal mining. Nowadays, most of the inhabitants work on the surrounding area on activities such as wind turbine manufacturing or coal mining.

Congosto also a large reservoir in its vicinity, the Barcena reservoir, to which many tourists visit during the summer.

user: Given this paragraph about different types of eyes, how are eye types categorized and why?

assistant: <think>
There are ten different eye layouts—indeed every technological method of capturing an optical image commonly used by human beings, with the exceptions of zoom and Fresnel lenses, occur in nature. Eye types can be categorised into "simple eyes", with one concave photoreceptive surface, and "compound eyes", which comprise a number of individual lenses laid out on a convex surface. Note that "simple" does not imply a reduced level of complexity or acuity. Indeed, any eye type can be adapted for almost any behaviour or environment. The only limitations specific to eye types are that of resolution—the physics of compound eyes prevents them from achieving a resolution better than 1°. Also, superposition eyes can achieve greater sensitivity than apposition eyes, so are better suited to dark-dwelling creatures. Eyes also fall into two groups on the basis of their photoreceptor's cellular construction, with the photoreceptor cells either being cilliated (as in the vertebrates) or rhabdomeric. These two groups are not monophyletic; the cnidaria also possess cilliated cells,  and some gastropods, as well as some annelids possess both.

Some organisms have photosensitive cells that do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. These are not considered eyes because they lack enough structure to be considered an organ, and do not produce an image.</think>
Eyes are categorized into two types, "simple eyes" and "compound eyes". In this case, "simple eyes" do not mean that they have reduced complexity or acuity, but rather that they have one concave photoreceptive surface. This is in contrast to "compound eyes" which are comprised of a number of individual lenses on a convex surface. In other words, eyes fall into two groups based on their photoreceptor's cellular construction either being cilliated (as in the vertebrates) or rhabdomeric.