Usage patterns
〈人〉の側に立つto side with someone; to support someone's position
He always sides with the weak.
〈相手〉側につくto take someone's side in a dispute
She ended up taking my side.
〈場所〉側の席a seat on the ~ side (e.g. window, aisle)
I reserved a window seat.
〈事〉側から見るとwhen seen from the ~ side/perspective
From the company's perspective, this decision is only natural.
