For how to enter, in TurboTax, See
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/is-a-fulbright-teaching-grant-to-a-foreign-country-that-pays-per-diem-expenses-taxable/00/450200
Additional references:
https://www.irs.gov/individuals/international-taxpayers/fulbright-grants
https://ttlc.intuit.com/questions/4695785-have-a-nsf-fellowship-software-is-showing-taxes-of-6000-on-22000-of-agi-this-is-unearned-income-after-adjusting-for-tuition-seems-very-high-is-this-an-error