You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Tuvalu

Context:
The traditional buildings of Tuvalu used plants and trees from the native broadleaf forest, including timber from: Pouka, (Hernandia peltata); Ngia or Ingia bush, (Pemphis acidula); Miro, (Thespesia populnea); Tonga, (Rhizophora mucronata); Fau or Fo fafini, or woman's fibre tree (Hibiscus tiliaceus). and fibre from: coconut; Ferra, native fig (Ficus aspem); Fala, screw pine or Pandanus. The buildings were constructed without nails and were lashed and tied together with a plaited sennit rope that was handmade from dried coconut fibre.

Question:
What building material did coconut provide?

fibre