Statements: Only heater are blowers. Some geyser are cable. Only a few heater are geyser.
Conclusions: I. Some cable are heater. II. Some heater are not cable.
Alternate Method: Some heater are geyser (I) + Some geyser are cable (I) ⇒ No conclusion. Hence conclusion I and II do not follow but it will make a complementary pair. Hence either conclusion I or II follow.