Our laboratory is much more spacious than-

Possessive Adjective + Noun এর পরিবর্তে Possessive pronoun (mine / his / hers / yours) ব্যবহৃত হয়।
যেমন- My performance is better than your performance. = My performance is better than yours.
Our laboratory is much more spacious than her laboratory = Our laboratory is much more spacious than hers.