You will be given a definition of a task first, then some input of the task.
This task is about translating a given Yoruba language sentence to English.

Ni January 15, 2019, o kere tan, eeyan mokanlelogun (21) lo ku nigba tawon adigunjale wa si hoteeli ati ofiisi kan ni ilu Nairobi, lorile-ede Kenya.
Output:
On January 15, 2019, at least 21 people were killed in an attack on a hotel and office complex in Nairobi, Kenya.