Some are required, while others are optional.

Some runners drink water as they are running.

Since that time, because of high prices, some publishers have moved out to the less expensive suburbs.

Some of these became reform socialists, while others began movements which were to develop into parties.

Some reports claim 30 years or more while others state 50 years or more .

Some of the remains were complete, while others were in pieces.

While some were encouraging, other comments mocked the contestants.

Some researchers suggest that it was primarily adapted to life on the ground, while other researchers suggest that it was principally arboreal.

For now, some Oi residents are happy the power plant will resume operations.

Some accused him of distorting reality whereas others claimed he was critiquing capitalism.

Some bodies are global, but most bodies remain local, regional, ethnic .

Some figured he'd head to France, while others thought the UAE would be his destination.

Some doctors are in favor of euthanasia while others believe it goes against the Hippocratic oath.

And that is that some of the most important learning we ever do happens before we're born, while we're still in the womb.

This little idea explains why some organizations and some leaders are able to inspire where others aren't.

In some countries adjustments in the institutional structure have recently been made . In other countries a debate is ongoing .

No wonder, then, that while some welcomed Air India's decision, others were outraged.

Additionally, some problems may have multiple algorithms of differing complexity, while other problems might have no algorithms or no known efficient algorithms.

And while as some may see them as the crazy ones. We see genius!

As he waited for his guests by a window, he watched boys playing on the seashore below.

Some reviewers complained that the audio samples used in the game sounded dated others considered this a benefit, calling them retro .

Some Member States have a single supervisory authority whereas others have several authorities .

Some consider Proudhon to be an individualist anarchist, while others regard him to be a social anarchist.

Machines replaced some workers while other workers became more specialized.

Some bloggers have taken the wait and see approach while some argue that past experiences show that nothing will really happen.

It was long supposed that Wordsworth relied chiefly on Coleridge for philosophical guidance, but more recently scholars have suggested that Wordsworth's ideas may have been formed years before he and Coleridge became friends in the mid 1790s.

Some spoke out in defence of freedom of speech, while others condemned the poet's writing

Some atoms on Earth have been artificially generated either deliberately or as by products of nuclear reactors or explosions.

But, while some praise a sustainable economic growth, others consider that President Dilma Rouseff has a misleading perspective of development .

While some have theorized that unusual local magnetic anomalies may exist in the area, such anomalies have not been found.

The usual partners of hijras and kothis are men who consider themselves heterosexual as they are the ones who penetrate.

Here are the latest tweets from and about Egypt as the clock struck midnight

Some are solitary, moving from home to home, while others are known to form clans called cetes.

Some survivors reported they saw Captain Lindemann standing at attention at the stem of the ship as she sank.

His father died when he was still a child and his mother followed a few years later.

This caused some bloggers to come to the defense of those singled out by the minister, while others investigated the background of the minister, who made these public accusations.

Some rejoice in Obama s victory, while others evaluate what impact Obama as President would have on Iranian political life.

The move has triggered hot discussion among netizens and some found it unbelievable or said that the channel operators had fallen asleep .

Some praised it for being catchy while others thought it was a fashion or slimming ad.

Some of these, such as Euparkeria , were small and lightly built, while others, such as Erythrosuchus , were as big as or bigger than the largest therapsids.

While there were some problems believed to be the result of careless or disgruntled employees, there were no confirmed instances of Axis instigated sabotage.

Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series.

While some bloggers celebrated the release, others warned that it could be a signal of more restrictions which could curtail freedom of speech in Kuwait.

While oil has made a few presidents and princes staggeringly rich, the rest of the population has received little benefit.

They were surrounded there but some students were able to escape, while the rest were suffocated with the tear gas bombs.