In his Karachi workshop he outlines in the open air and paints his ideas on the ground .
In his Karachi workshop , he sketches in the open air and paints his ideas on the ground .

Are these two sentences paraphrases of each other?
yes

There is a daily street market on Saturdays , around where the covered small weekly market is .
On Saturdays there is a daily street market around which the covered small weekly market is located .

Are these two sentences paraphrases of each other?
yes

How he forms the case and brings them to books solves the rest .
How he resolves the case and brings them to books forms the rest .

Are these two sentences paraphrases of each other?
no

The magazine was based in Paris , but was released by Gerald Duckworth and Company in London .
The magazine was based in London , but was released by Gerald Duckworth and Company in Paris .

Are these two sentences paraphrases of each other?
no