[?]why?[/?]

See this word as a collocate cloud

playing his violin then m1094:	[?]why?[/?]	[child noise] does that go there
m nae daein onything f1104:	[?]why?[/?]	f1103: i m gaun to
oh i mind them m942:	[?]why?[/?]	f940: i didnae ken whit