tshark: Using filter expression as field ?

Hello,

I would like to distinguish frames from the tshark output, see this failed attemp :

tshark -r mydump-20141015-185000.dump  -Y "frame contains a or frame contains b" -T fields -e frame.time -e "frame contains a" -e "frame contains b"

I would like next output:

time1 0 1 # not comtains a and contains b
time2 1 1 # contains a and contains b
time3 1 0 # contains a and not contains b

Thank you very much ! Does tshark have such capabilitie ?

Un saludo