Question: Which person started crying?
About the article "Last Supper", section "Prediction of Peter's denial".

Candidate passages:
It can be very difficult to observe biological effects of crying, especially considering many psychologists believe the environment in which a person cries can alter the experience of the crier.
However, crying studies in laboratories have shown several physical effects of crying, such as increased heart rate, sweating, and slowed breathing.
Although it appears that the type of effects an individual experiences depends largely on the individual, for many it seems that the calming effects of crying, such as slowed breathing, outlast the negative effects, which could explain why people remember crying as being helpful and beneficial.
A common side effect of crying is feeling a lump in the throat of the crier, otherwise known as a globus sensation.
Although many things can cause a globus sensation, the one experienced in crying is a response to the stress experienced by the sympathetic nervous system.
When an animal is threatened by some form of danger, the sympathetic nervous system triggers several processes to allow the animal to fight or flee.
This includes shutting down unnecessary body functions, such as digestion, and increasing blood flow and oxygen to necessary muscles.
When an individual experiences emotions such as sorrow, the sympathetic nervous system still responds in this way.
Another function increased by the sympathetic nervous system is breathing, which includes opening the throat in order to increase air flow.
This is done by expanding the glottis, which allows more air to pass through.
As an individual is undergoing this sympathetic response, eventually the parasympathetic nervous system attempts to undo the response by decreasing high stress activities and increasing recuperative processes, which includes running digestion.
This involves swallowing, a process which requires closing the fully expanded glottis to prevent food from entering the larynx.
The glottis, however, attempts to remain open as an individual cries.
This fight to close the glottis creates a sensation that feels like a lump in the individual's throat. 
All verbs must be disyllabic.
Some verbs may only have a single overt nonsyllabic consonantal prefix or a prefix lacking an onset, or no prefix at all before the verb stem.
Since all verbs are required to have two syllables, a meaningless prefix must be added to the verb to fulfill the disyllabic requirement.
This prosodic prefix is known as a "peg element" in Athabascan terminology (Edward Sapir used the term "pepet vowel").
For example, the verb meaning "she/he/they is/are crying" has the following morphological composition: "Ø-Ø-cha" where both the imperfective modal prefix and the third person subject prefix are phonologically null morphemes and the verb stem is "-cha".
In order for this verb to be complete a "yi-" peg element must be prefixed to the verb stem, resulting in the verb form "yicha".
Another examples are verb "yishcha" "I'm crying" which is morphologically "Ø-sh-cha" ("Ø-" null imperfective modal, "-sh-" first person singular subject, "-cha" verb stem) and "wohcha" "you (2+) are crying" which is "Ø-oh-cha" ("Ø-" null imperfective modal, "-oh-" second person dual-plural subject, "-cha" verb stem).
The glide consonant of the peg element is before , before , and before . 
Crying Time is a studio album by Ray Charles released in February 1966 as the first release on his label Tangerine, which was distributed by ABC Paramount.  
"I started crying like a teenage girl."
- Gregg Edelman on learning of his "Into the Woods" Tony nomination, to Broadway.com, May 2002. 
There have been many attempts to differentiate between the two distinct types of crying (one negative and one positive).
Different perspectives have been broken down into three dimensions to examine the emotions being felt and also to grasp the contrast between the two types.
Spatial perspective explains sad crying as reaching out to be "there," such as at home or with a person who may have just passed away.
In contrast, joyful crying is acknowledging being "here."
It emphasized the intense awareness of one's location, such as at a relative's wedding.
Temporal perspective explains crying slightly differently.
In temporal perspective, sorrowful crying is due to looking to the past with regret or to the future with dread.
This illustrated crying as a result of losing someone and regretting not spending more time with them or being nervous about an upcoming event.
Crying as a result of happiness would then be a response to a moment as if it is eternal; the person is frozen in a blissful, immortalized present.
The last dimension is known as the public-private perspective.
This describes the two types of cryings as ways to imply details about the self as known privately or one's public identity.
For example, crying due to a loss is a message to the outside world that pleads for help with coping with internal sufferings.
Or, as Arthur Schopenhauer suggested, sorrowful crying is a method of self-pity or self-regard, a way one comforts oneself.
Joyful crying, in contrast, is in recognition of beauty, glory, or wonderfulness.