The following are the rules for semicolon and colon that look quite similar. I can't tell the difference exactly. Either of the examples seems like emphasis. So how do you tell the difference? And are these rules quite strict?
Use a semicolon to join 2 independent clauses when the second clause restates the first or when the two clauses are of equal emphasis.
ex)Road construction in Dallas has hindered travel around town; streets have become covered with bulldozers, trucks, and cones.
Use a colon to join 2 independent clauses when you wish to emphasize the second clause.
ex)Road construction in Dallas has hindered travel around town: parts of Main, Fifth, and West Street are closed during the construction.
You state that the rules you have underlined 'look quite similar', but there is an important difference between them.
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