Problem: Information: - Surgery (from the "cheirourgik" (composed of , "hand", and , "work"), via , meaning "hand work") is an ancient medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as disease or injury, to help improve bodily function or appearance or to repair unwanted ruptured areas (for example, a perforated ear drum). - In the practice of medicine (especially surgery and dentistry), anesthesia or anaesthesia is a temporary induced loss of sensation or awareness. It may include analgesia (relief from or prevention of pain), paralysis (muscle relaxation), amnesia (loss of memory), or unconsciousness. A patient under the effects of anesthetic drugs is referred to as being anesthetized. - Medicine (British English ; American English ) is the science and practice of the diagnosis, treatment, and prevention of disease. The word "medicine" is derived from Latin "medicus", meaning "a physician". Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others. - An anesthetic (or anaesthetic) is a drug to prevent pain during surgery. A wide variety of drugs are used in modern anesthetic practice. Many are rarely used outside of anesthesia, although others are used commonly by all disciplines. Anesthetics are categorized into two classes: general anesthetics, which cause a reversible loss of consciousness, and local anesthetics, which cause a reversible loss of sensation for a limited region of the body while maintaining consciousness. Combinations of anesthetics are sometimes used for their synergistic and additive therapeutic effects. Adverse effects, however, may also be increased. - Dentistry is a branch of medicine that is involved in the study, diagnosis, prevention, and treatment of diseases, disorders and conditions of the oral cavity, commonly in the dentition but also the oral mucosa, and of adjacent and related structures and tissues, particularly in the maxillofacial (jaw and facial) area. Although primarily associated with teeth among the general public, the field of dentistry or dental medicine is not limited to teeth but includes other aspects of the craniofacial complex including the temperomandibular and other supporting structures. The term dentistry comes from odontology (from Ancient Greek (odous, "tooth")) the study of the structure, development, and abnormalities of the teeth. Because of their substantial overlap in concept, dentistry is often also understood to subsume the now largely defunct medical specialty of stomatology (the study of the mouth and its disorders and diseases) for which reason the two terms are used interchangeably in certain regions. - Dental anesthesia ( or dental anaesthesia ) is a field of anesthesia that includes not only local anesthetics but sedation and general anesthesia . What entity does 'dental anesthesia' has the relation 'medical treatment' with?

A: dentistry

Problem: Information: - Mediabase is a music industry service that monitors radio station airplay in 180 US and Canadian markets. Mediabase publishes music charts and data based on the most played songs on terrestrial and satellite radio, and provides in-depth analytical tools for radio and record industry professionals. Mediabase charts and airplay data are used on many popular radio countdown shows and televised music awards programs. Music charts are published in both domestic and international trade publications and newspapers worldwide. Mediabase is a division of iHeartMedia. - Nielsen Broadcast Data Systems, better known as BDS, is a service that tracks monitored radio, television and internet airplay of songs based on the number of spins and detections. The service, which is a subsidiary of Nielsen Corporation provides the basis for Nielsen Media publication "Billboard" in the United States, while in Canada, BDS helps determine the Canadian BDS Airplay Chart and the Canadian Hot 100 chart, which is published by "Jam!" and in the website for "Canadian Music Network", in determining their radio airplay music charts and determines the chart movement in "Billboard"<nowiki>'</nowiki>s Hot 100 chart when combined with single sales from Nielsen SoundScan. From August 2006 to its final June 2009 publication, BDS also provided chart data for "R&R" after Nielsen acquired the trade. On September 10, 2009, the website "Radio-Info.com" struck a partnership with Nielsen BDS to provide radio airplay charts and related data for over 20 formats. - iHeartMedia, Inc. (formerly CC Media Holdings, Inc.) is an American mass media corporation headquartered in San Antonio, Texas. It is the holding company of iHeartCommunications, Inc. (formerly Clear Channel Communications, Inc.), a company founded by Lowry Mays and B. J. "Red" McCombs in 1972, and later taken private by Bain Capital, LLC and Thomas H. Lee Partners through a leveraged buyout in 2008. As a result of this buyout, Clear Channel Communications, Inc. began to operate as a wholly owned subsidiary of CC Media Holdings, Inc. On September 16, 2014, CC Media Holdings, Inc. was rebranded iHeartMedia, Inc.; and Clear Channel Communications, Inc., became iHeartCommunications, Inc. - Satellite radio is according to "article 1.39" of the International Telecommunication Unions (ITU) ITU Radio Regulations (RR) a "Broadcasting-satellite service". - WCDA ( 106.3 FM , '' Your 106.3 '' ) plays adult top 40 music as it 's a Mediabase Hot AC reporter . Dale O'Brian in the mornings . - The Adult Top 40 (also known as Adult Pop Songs) chart is published weekly by "Billboard" magazine and ranks "the most popular adult top 40 as based on radio airplay detections measured by Nielsen Broadcast Data Systems." What entity does 'wcda' has the relation 'instance of' with?

A:
radio station