Q: The two have no diplomatic ties and their already tense relationship has been frayed by the crisis over the North 's nuclear ambitions .

The two have no diplomatic ties and their already tense relationship has been frayed further by a diplomatic spat over North Korea 's nuclear ambitions .

Please tell me if the sentences above mean the same.
A: yes
Q: Most taxpayers will get surprise tax cuts of between $ 4 and $ 11 a week from July 1 .

Australia 's 9 million income taxpayers received surprise tax cuts of between $ 3 and $ 11 a week from Treasurer Peter Costello last night .

Please tell me if the sentences above mean the same.
A: yes
Q: Wind River also cut costs , reducing first-quarter operating expenses by 28 percent to $ 47.1 million .

Operating expenses fell 28 percent to $ 47.1 million in the first quarter from $ 65.8 million a year earlier .

Please tell me if the sentences above mean the same.
A:
no