For something (actor -um- & patient) to become pleasant to smell; of a flower, garlic, cooking meat, fish, perfume.
Bumangu nan mihāang hi un iddum di amput.
What is cooked becomes pleasant to smell if one adds garlic.
For something such as a condiment, a perfume (actor umipa- & inst) to cause something (patient ipa-) to have a pleasant smell.
Ipabangun nan amput nan mihāang.
Garlic causes what is cooked to have a pleasant smell.