source: [lemma=example] [tag=□] □ □
destination: [lemma=example] [tag=","] □ □
spec: Operating systems for other devices ( for example , servers , other client devices ) would need to be considerably modified in order to take advantage of the capabilities of a different hardware , and would not offer the rich and easy-to-use user interface that is necessary for client PC operating systems . The Delta Energy Center is an 880-megawatt natural gas-fired plant currently under construction in Pittsburg , Calif.