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Four five letter words begin with LL, and the doubled L comes from Spanish and Welsh rather than English.
A takes half the third box and O and U a quarter each, which at this size means two words, one word and one word.
LLAMA is the South American animal and LLANO is a flat grassy plain, both borrowed from Spanish where LL is an ordinary opening.
The other two entries are names, so the usable list runs to exactly two.
Guess LLAMA. It is far more common than LLANO and the two differ across the last two boxes, so a miss still points you at the answer.
Beyond those two the page has nothing an ordinary puzzle would use.
Four words is the smallest list on the site that still holds a word anybody would name, which makes it a page to check rather than work through.
It does not natively. LLAMA and LLANO came in from Spanish, and the remaining entries are Welsh names, all keeping their original spelling.
It is a real geographic term used in English writing about South America, though far less common than LLAMA.
In English speakers usually say it as a single L. In the Spanish original it is closer to a Y sound, which is why the spelling looks unusual.