Consider the following shortest-route problem involving seven cities.The distances between the cities are given below.Draw the network model for this problem and formulate the LP for finding the shortest route from City 1 to City 7. 
Definitions:
Aprotic Solvents
Solvents that lack an acidic hydrogen, meaning they cannot donate protons, and are typically used in organic synthesis.
3-Iodo-3-ethylpentane
An organic compound featuring an iodine atom on the third carbon of a pentane chain, which also has an ethyl group attached to the same carbon.
Sodium Methoxide
A strong base used in organic synthesis, prepared by reacting sodium with methanol.
Methanol
A simple alcohol compound, used as a solvent, fuel, and antifreeze, characterized by one hydroxyl group attached to a methyl group.
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