The result of 'guNNa' will be 'a', 'e', or 'o'.
RULE: adeN-(NOM-S) guNNaHa-(NOM-S)
[ 'guNNa' is defined as 'at' and 'eN' ]
The following are illustrations:
BG 1.12
vinadyochchEHa ⇐{6.1.87}
vinadya uchchEHa
BG 1.28+29
dRuSHTvemam ⇐{6.1.87}
dRuSHTvA imam