Question: State the interval-algebra relation that holds between every pair of the following real world events: LK: The life of President Kennedy. IK: The infancy of

State the interval-algebra relation that holds between every pair of the following real world events:

LK: The life of President Kennedy.

IK: The infancy of President Kennedy.

PK: The presidency of President Kennedy.

LJ: The life of President Johnson.

PJ: The presidency of President Johnson.

LO: The life of President Obama.

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