Why seventh precept split in to two?
The Buddha gave teachings on how the eight precepts are to be practiced, and on the right and wrong ways of practicing the eight precepts.
1.I undertake to abstain from causing harm and taking life (both human and non-human).
2.I undertake to abstain from taking what is not given (for example stealing, displacements that may cause misunderstandings).
3.I undertake to abstain from sexual activity.
4.I undertake to abstain from wrong speech: telling lies, deceiving others, manipulating others, using hurtful words.
5.I undertake to abstain from using intoxicating drinks and drugs, which lead to carelessness.
6.I undertake to abstain from eating at the wrong time (the right time is after sunrise, before noon).7.I undertake to abstain from singing, dancing, playing music, attending entertainment performances, wearing perfume, and using cosmetics and garlands (decorative accessories).
8.I undertake to abstain from luxurious places for sitting or sleeping, and overindulging in sleep.
The Ten Precepts (Pali: dasasila or samanerasikkha) refer to the precepts (training rules) for Buddhist samaneras (novice monks) and samaneris (novice nuns). They are used in most Buddhist schools.
1.Refrain from killing living creatures.
2.Refrain from stealing.
3.Refrain from unchastity (sensuality, sexuality, lust).
4.Refrain from incorrect speech.
5.Refrain from taking intoxicants.
6.Refrain from taking food at inappropriate times (after noon).7.Refrain from singing, dancing, playing music or attending entertainment programs (performances).
8Refrain from wearing perfume, cosmetics and garland (decorative accessories).
9.Refrain from sitting on high chairs and sleeping on luxurious, soft beds.
10.Refrain from accepting money.http://en.wikipedia.org/wiki/Five_Precepts#Ten_Precepts