The examples 272, 273 and 120 represent cases of contrastive or identificational focus. there are also cases of presentational or information focus, such as example 274.
There are also cases of left dislocation (with use of resumptive pronoun) and topicalization of constituents without a focus marker. these are not focus constructions, however.
oh, wan kronto srefi oom n. no man kapu?
[oh one coconut self uncle n neg can cut]
‘oh, even a coconut uncle n. can’t cut?’ (Winford & Migge 2008: 705)
Source: Wilner 1992: 47
Source: Winford 1997: 277
Source: Winford 2008: 27