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

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

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