[bruiselee]

umm, no there was no attachement.

i assume you are asking for example sentences in order to establish criteria...
...unfortunately, i cant attach the corpus (prolly not legal to do so).

in the meantime i came up with these criteria (not sure though, whether they can be applied without exceptions)

like:
AVO
- after just
- followed by CJS

PRP
- like = as

as
CJS
- as =because, since, when

PRP
- as = like

AV0
- as .... as (whereby the last as is a CJS according to BNC tagging)