->> When a process P obtains a physical frame that was previously used
->> by a process Q, how do you adjust the page table (and any other
->> data structures) to reflect the physical frame Q no longer has?
+>> When a process P obtains a frame that was previously used by a
+>> process Q, how do you adjust the page table (and any other data
+>> structures) to reflect the frame Q no longer has?