In a separate development, one of the main groups fighting in northern Mali said it had split and wanted dialogue.
One of the main groups in this movement is the misnamed National Vaccine Information Center, which really should be called the Vaccine Misinformation Center.
Even the main groups are divided by differing ideologies and functions.
Fearful that their candidates will be assassinated, most of the main groups are not disclosing most of the names on their slates, beyond a few well-known figures.
The two other main groups are the 300, 000 or so Chinese (a tenth of them students) and the 225, 000 Brazilians (ethnic Japanese whose forebears emigrated to Brazil).
ECONOMIST: Social conventions and demography add to the sclerosis
Analysts say surprisingly little is known about the workings of the two main groups.
And the main green groups have called an emergency joint congress for June 13th.
This time, the main paramilitary groups are on ceasefire and are signed up to the Good Friday agreement.
Of the main taxonomic groups (phyla), almost all are found in the oceans and half are exclusively marine.
They will be dragged into what is sectarian divisiveness with many different factions among the three main groups.
CNN: Transcript of Thursday's Democratic presidential debate
Mr Abbas says he hopes a ceasefire agreement can soon be reached with Hamas, one of the main militant groups.
One of the main rebel groups fighting in the Niger Delta has called off its unilateral ceasefire, just weeks after announcing the truce.
ECONOMIST: A big rebel group in the Niger Delta calls off its ceasefire
When completed, this tree had sprouted branches representing all the main language groups in modern Europe: Romance, Celtic, Germanic, Slavic and so on.
He said the main supermarket groups have to make acquisitions in the convenience sector as it would take too long for them to grow organically.
While most of the main paramilitary groups have destroyed their weapons or at least begun the process, the INLA has not decommissioned any of its arms.
Talks last month between the Burundian government and some of the main rebel groups failed to make any headway, and fighting has been intensifying in recent weeks.
They were appointed to liaise with the commission on Wednesday, in a move which meant that all the main paramilitary groups have now committed to talks about arms decommissioning.
The statement said the fighting violated the letter and spirit of the Pretoria power-sharing deal signed on 17 December by the Kinshasa government, the main rebel groups and DR Congo's political opposition.
No one can say with certainty how much influence it has on the main political groups, including the one loyal to Mr Sadr, on whom Iran's government seems to blow hot and cold.
Earlier in the week, police spokesman Lieutenant Schwartz told the BBC they had been preparing for the summit for more than six months and had even held meetings with the main protest groups to coordinate their actions in advance.
The Alliance was only formed in May 2011 as a merger of the two main opposition groups, the former governing United Bermuda Party and the Bermuda Democratic Alliance, in an effort to stop splitting the anti-PLP vote.
One of the main Sunni groups, the Iraqi Islamic Party, said on Tuesday it was quitting the government, though its representative in the cabinet, Hajem al-Hassani, told Reuters news agency that he would stay in the government and quit his party.
Peace in Darfur looked a little more likely on February 20th with the agreement of a ceasefire between one of the main Darfur rebel groups, the Justice and Equality Movement (JEM), and the government of Sudan.
Later the students discussed in groups the main problems they faced and prioritized the issues.
In the weeks before the deadline, a rough consensus had emerged between two of the parliament's three main groups, the Shia Muslims and ethnic Kurds.
Its reforms are supported by the two main political groups, which between them take two-thirds of votes.
About half of Americans -- 159 million -- fall into one of the five main target groups, including 102 million people aged 6 to 18.
Luckier villagers, from all the main caste-groups, have got their names down for another scheme, Antodaya Anna Yojana, which provides 35kg of cut-price rice a month.
The company's biggest problem has been its flexible-packaging business, the smallest of the three main product groups, which has been hit by fierce competition in Europe and by poor management.
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