*SUPPORT*
IN: wif OUT: YELLOW
IN: wif tufa blicket OUT: YELLOW RED
IN: fep wif tufa blicket OUT: GREEN YELLOW RED
IN: lug tufa fep OUT: BLUE GREEN
IN: lug OUT: BLUE
IN: blicket OUT: RED
IN: wif fep OUT: YELLOW GREEN
IN: wif tufa fep OUT: YELLOW GREEN
IN: blicket gazzer wif tufa fep OUT: RED YELLOW GREEN RED
IN: wif kiki blicket OUT: RED YELLOW RED
IN: fep gazzer fep tufa blicket OUT: GREEN GREEN RED GREEN
IN: wif tufa lug kiki blicket lug tufa blicket OUT: RED BLUE RED YELLOW BLUE RED BLUE RED
IN: fep blicket tufa blicket OUT: GREEN RED RED
IN: blicket fep tufa blicket OUT: RED GREEN RED

*QUERY*
IN: wif tufa lug OUT: YELLOW BLUE
IN: fep tufa wif OUT: GREEN YELLOW
IN: blicket tufa wif OUT: RED YELLOW
IN: lug lug tufa lug OUT: BLUE BLUE BLUE
IN: fep tufa fep OUT: GREEN GREEN
IN: lug lug tufa blicket kiki lug OUT: BLUE BLUE BLUE RED BLUE
IN: wif gazzer wif tufa blicket OUT: YELLOW YELLOW RED YELLOW
IN: wif tufa blicket gazzer lug tufa fep OUT: YELLOW RED BLUE GREEN YELLOW RED
IN: lug tufa blicket OUT: BLUE RED
IN: lug wif OUT: BLUE YELLOW

*GRAMMAR*
fep -> GREEN 
 wif -> YELLOW 
 lug -> BLUE 
 blicket -> RED 
 u1 tufa u2 -> [u1] [u2] 
 x1 kiki x2 -> [x2] [x1] [x2] 
 x1 gazzer x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 