question: patient:heathy and sick:medicine
choices.label: A B C D
choices.text: stocks:the ups and downs in business:economics sea:ebb and flow:oceanography tactics:guns and ammunition:military science geomorphology:shifting stars:geography
explanation: i don't knowthe different manifestations of "patient" are "heathy and sick", and the research object of "medicine" are "patients". one of the states of "stock" is not "the ups and downs in business". "the sea" is the research object of "oceanography", and the different representations of "the sea" are "ebb and flow". "guns and ammunition" are the required items for "tactics", not a status presentation. "shifting stars" can indicate that the stars change positions, but it cannot indicate "geomorphology".
relation: heathy and sick patient medicine R3.10
relation: ebb and flow oceanography sea R3.10