Here's a short story:

The Independent State of Samoa ( Samoan: Malo Sa 'oloto Tuto 'atasi o Sāmoa, IPA: [ˌsaːˈmoa]), commonly known as Samoa (Samoan: Sāmoa) and formerly known as Western Samoa, is a Unitary Parliamentary Republic with eleven administrative divisions. The two main islands are Savai'i and Upolu with four smaller islands surrounding the landmasses. The capital city is Apia. The Lapita people discovered and settled the Samoan islands around 3,500 years ago. They developed a unique language and cultural identity. 

The origins of the Samoans are closely studied in modern research about Polynesia in various scientific disciplines such as genetics, linguistics and anthropology. Scientific research is ongoing, although a number of different theories exist; including one proposing that the Samoans originated from Austronesian predecessors during the terminal eastward Lapita expansion period from Southeast Asia and Melanesia between 2,500 and 1,500 BCE. The Samoan origins are currently being reassessed due to new scientific evidence and carbon dating findings from 2003 and onwards. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: What did the Independent State of Samoa used to be called?
Guess: Western Samoa

Question: What are the 2 main islands?
Guess: Savai'i and Upolu

Question: How many smaller islands are there?
Guess: Four

Question: What is the capital?
Guess: Apia

Question: When were the islands discovered?
Guess: 3,500 years ago

Question: By who?
Guess: The Lapita people

Question: Was their language one that was used elsewhere?
Guess: no

Question: What is the Independent State of Samoa's shorter name?
Guess: Samoa

Question: How many divisions are there?
Guess: 11

Question: What kind of republic is it?
Guess: Unitary Parliamentary Republic

Question: What is the name in the \Samoan language?
Guess: unknown

Question: W
Guess: unknown

Question: What scientific fields study the Samoans?
Guess: such as genetics, linguistics and anthropology.

Question: Is the research already done?
Guess: ongoing

Question: When was the expansion period?
Guess: between 2,500 and 1,500 BCE

Now answer the following question in the same format.

Question: Where are the Samoans thought to have come from during that period?

Austronesian