Determine the topic of the question-answer pair. Question: "who sang what a wonderful world?";  Answer: "It was first recorded by Louis Armstrong and released as a single in 1967."? Topic:
Ans: What a Wonderful World

Determine the topic of the question-answer pair. Question: "what is impingement of the shoulder?";  Answer: "Shoulder impingement syndrome, also called painful arc syndrome, supraspinatus syndrome, swimmer's shoulder, and thrower's shoulder, is a clinical syndrome which occurs when the tendons of the rotator cuff muscles become irritated and inflamed as they pass through the subacromial space, the passage beneath the acromion ."? Topic:
Ans: Impingement syndrome

Determine the topic of the question-answer pair. Question: "where are the internal and external iliac arteries?";  Answer: "The external iliac arteries are two major arteries which bifurcate off the common iliac arteries anterior to the sacroiliac joint of the pelvis."? Topic:
Ans: External iliac artery

Determine the topic of the question-answer pair. Question: "What is Ischemia or infarction??";  Answer: "In medicine , ischemia, also spelled as ischaemia or ischæmia, (; from Greek language ισχαιμία, ischaimía; isch- root denoting a restriction or thinning or to make or grow thin/lean, haema blood ) is a restriction in blood supply to tissues , causing a shortage of oxygen and glucose needed for cellular metabolism (to keep tissue alive)."? Topic:

Ans: Ischemia