<span class="searchmatch">superstrūctam</span> accusative feminine singular of superstrūctus...
superstrūctō superstrūctae superstrūctō superstrūctīs accusative superstrūctum <span class="searchmatch">superstrūctam</span> superstrūctum superstrūctōs superstrūctās superstrūcta ablative superstrūctō...