Hoʻolālā ʻia ka ʻōnaehana hōʻailona hoʻolālā o waho e hāʻawi i kahi hiʻohiʻona ʻike o kāu hōʻailona, ʻoiai e kōkua ana i nā mea kūʻai aku e hoʻokele i ke kaʻa i loko o ka lumi waho o kāu ʻoihana. ʻO nā ʻano hōʻailona e pili ana i nā hōʻailona palapala kiʻekiʻe, nā hōʻailona hoʻomanaʻo, nā hōʻailona facade, nā kaʻa a me nā hōʻailona kuhikuhi kaʻa.