SHS = Springhill Suites
FI = Fairfield Inn
RI = Residence Inn
TPS = Townplace Suites
CY = Courtyard
AC = AC Hotel
RC = Ritz Carlton
SPG = Starwood
MAR = Marriott
ROW = Rest of World (aka, properties outside the USA)
S/H = Starwood/Hilton

Cheers.