Problem: Tuberculosis:

The primary site of infection in the lungs, known as the "Ghon focus", is generally located in either the upper part of the lower lobe, or the lower part of the upper lobe. Tuberculosis of the lungs may also occur via infection from the blood stream. This is known as a Simon focus and is typically found in the top of the lung. This hematogenous transmission can also spread infection to more distant sites, such as peripheral lymph nodes, the kidneys, the brain, and the bones. All parts of the body can be affected by the disease, though for unknown reasons it rarely affects the heart, skeletal muscles, pancreas, or thyroid.

What is another name for Ghon focus?
---
A: unanswerable

Problem: Iran:

As a result of the 19th century Russo-Persian wars, the Russians took over the Caucasus, and Iran irrevocably lost control over its integral territories in the region (comprising modern-day Dagestan, Georgia, Armenia, and Azerbaijan), which got confirmed per the treaties of Gulistan and Turkmenchay. The area to the north of the river Aras, among which the contemporary Republic of Azerbaijan, eastern Georgia, Dagestan, and Armenia, were Iranian territory until they were occupied by Russia in the course of the 19th century.

What region consisting of Dagestan, Georgia, Armenia, & Azerbaijan did Iran lose control of to the Russians?
---
A: the Caucasus

Problem: Miami:

Miami's tropical weather allows for year-round outdoors activities. The city has numerous marinas, rivers, bays, canals, and the Atlantic Ocean, which make boating, sailing, and fishing popular outdoors activities. Biscayne Bay has numerous coral reefs which make snorkeling and scuba diving popular. There are over 80 parks and gardens in the city. The largest and most popular parks are Bayfront Park and Bicentennial Park (located in the heart of Downtown and the location of the American Airlines Arena and Bayside Marketplace), Tropical Park, Peacock Park, Morningside Park, Virginia Key, and Watson Island.

Why can outdoor activities take place all year in Miami?
---
A: tropical weather

Problem: Israel:

The following day, the armies of four Arab countriesEgypt, Syria, Transjordan and Iraqentered what had been British Mandatory Palestine, launching the 1948 ArabIsraeli War; Contingents from Yemen, Morocco, Saudi Arabia and Sudan joined the war. The apparent purpose of the invasion was to prevent the establishment of the Jewish state at inception, and some Arab leaders talked about driving the Jews into the sea. According to Benny Morris, Jews felt that the invading Arab armies aimed to slaughter the Jews. The Arab league stated that the invasion was to restore law and order and to prevent further bloodshed.

What were the invading Arab armies aim?
---
A:
slaughter the Jews