QUESTION: Fix punctuation: Transfer from Winterthur to Geneva GVA airport
ANS: Transfer from Winterthur to Geneva (GVA) airport

QUESTION: Fix punctuation: Block for three horses Riding school 12 meters in diameter
ANS: Block for three horses. Riding school 12 meters in diameter.

QUESTION: Fix punctuation: You already know that Tin Can is going to change our corner of the world and maybe a few other parts of the world as well
ANS: You already know that Tin Can is going to change our corner of the world (and maybe a few other parts of the world as well).

QUESTION: Fix punctuation: Our offices inMadrid andLondon have spearheaded the firms activity in the region making the most of Madrids connection in culture and language as well as the extensive experience and expertise in the region of our individual lawyers
ANS:
Our offices inMadrid andLondon have spearheaded the firm's activity in the region, making the most of Madrid's connection in culture and language as well as the extensive experience and expertise in the region of our individual lawyers.