Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.092196629267
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 0, worker: A1JHVZIC3FH9LG
darker: 2 (eq: False, dd: False), confidence: 0, worker: A21TA9DWNPHPBG (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A1DDY93NB8NESD
darker: 1 (eq: False, dd: True), confidence: 1, worker: A234WZ4KX8IW07
darker: 2 (eq: False, dd: False), confidence: 1, worker: A8QNPF8ASC5VC
darker: E (eq: True, dd: None), confidence: 1, worker: A1KF93C9NTOP42
(0: guessing, 1: probably, 2: definitely)