How do you read these labels?

[camille1585]

I'm looking at some Catleya on a vendor's website, and some names are rather complex. Normally I don't have trouble understanding what the cross is, but how do you read something like this? Are there parentheses missing or is there a specific rule/convention to indicate the order of crossing?

Cat. Chuzca Real x schilleriana x (Green Emerald x Brabantiae)
and
Cat. (Sophia Martin x Thospol Spots) x aclandiae x Peckhavien

For instance should the second one be understood as
A) Cat. (Sophia Martin x Thospol Spots) x (aclandiae x Peckhavien)

B) Cat. (Sophia Martin x Thospol Spots) x aclandiae, with the resulting offspring then crossed to Catt. Peckhavien?

C) something else entirely?