#! /usr/bin/sed -E -i .bak -f
#deal with Greek letters
s/ά/ά/g
s/ί/ί/g
s/έ/έ/g
s/ώ/ώ/g
s/ή/ή/g
s/ύ/ύ/g
s/ό/ό/g
s/̓͂Α/Ἆ/g
s/̓͂Η/Ἦ/g
s/̓͂Ω/Ὦ/g
s/ί̈/ΐ/g
s/ΐ/ΐ/g
s/ΰ/ΰ/g
s/᾿/ʼ/g