See Feature 71 "Noun phrase conjunction and comitative". Note that while nominal and verbal expressions can be conjoined by i 'and' or ku 'with', clause conjunction requires i 'and'.
Source: Muller 1989: 472
Source: Muller 1989: 472
Source: Kouwenberg 2007: 328
Source: Kouwenberg 2007: 328
Source: Kouwenberg and Murray 1994: 54