You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["Disease", "Chemical"].

Please return the output as a JSON object of the format: {"Chemical" : ["Naloxone", ...], "Disease" : ["Hypotensive", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Midazolam compared with thiopentone as an induction agent. In patients premedicated with scopolamine + morphine (+5 mg nitrazepam the evening before surgery), the sleep-inducing effect of midazolam 0.15 mg/kg i.v. was clearly slower in onset than that of thiopentone 4.67 mg/kg i.v. Somewhat fewer cardiovascular and local sequelae were found in the midazolam group, but, although apnoea occurred less often in the midazolam group it lasted longer. On the whole, the differences between midazolam and thiopentone had no apparent clinical consequences. Midazolam is a new alternative agent for induction in combination anaesthesia.
{"Chemical": ["thiopentone", "nitrazepam", "Midazolam", "morphine", "scopolamine", "midazolam"], "Disease": ["apnoea"]}