Historical Linguistics and Language Families 3, Exercise 2: Polynesian sets

Position in "two" (lua / rua / lua):
  Samoan l : Maori r : Hawaiian l      set l : r : l
  (Tongan ua has no consonant there in the data given)

Position in "three" (tolu / toru / kolu):
  the middle consonant: Tongan l : Samoan l : Maori r : Hawaiian l
  the first consonant: t : t : t : k (Hawaiian k against t elsewhere, which
  the source gives as its example)

Maori r corresponds regularly to l in Samoan and Hawaiian. Because the match
appears in both words, it is a correspondence set, not a coincidence.
The source states only the Hawaiian k : t set explicitly; the l : r : l
sets are read off the same table by the same method (my work, not quoted).