determine or distinguish the nature of a problem or an illness through a diagnostic analysis
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know
be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about; "I know that the President lied to the people"; "I want to know who is winning the game!"; "I know it's time"
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learn
acquire or gain knowledge or skills; "She learned dancing from her sister"; "I learned Sanskrit"
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remember
recall knowledge from memory; have a recollection: "I can't remember saying any such thing"; "I can't think what her last name was"; "can you remember her phone number?" "Do you remember that he once loved you?"; "call up memories"