One.
Added by a Guest on October 26, 2015 | 41 people like this You Like This | Unlike
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vv on October 30, 2015
it can be more than one if the first person needs help but can also be zero if a machine or non-human changes it
Jeffrey on August 31, 2016
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2
vv on October 30, 2015
it can be more than one if the first person needs help but can also be zero if a machine or non-human changes it
Jeffrey on August 31, 2016