erasure at terminal 5-1erasure at terminal 5-2erasure at terminal 5-3erasure at terminal 5-4erasure at terminal 5-5erasure at terminal 5-6erasure at terminal 5-7erasure at terminal 5-8erasure at terminal 5-9erasure at terminal 5-10erasure at terminal 5-11erasure at terminal 5-12erasure at terminal 5-13erasure at terminal 5-14erasure at terminal 5-15erasure at terminal 5-16erasure at terminal 5-17erasure at terminal 5-18erasure at terminal 5-19erasure at terminal 5-20