[...]\the\tbeen\tin\tit\tfor\tthey\tschool\tlast\tyear .
[...]\the\tCOP.PST\tPREP\tit\tPREP\tDET.POSS.3PL\tschool\tlast\tyear
[But my son who was here,] he participated in it (Junkanoo, i.e. the Bahamian form of carnival) for their school last year.