*SUPPORT*
IN: fep dax gazzer fep OUT: RED RED RED
IN: wif gazzer fep OUT: PURPLE RED
IN: wif OUT: PURPLE
IN: lug tufa lug gazzer fep OUT: GREEN GREEN RED
IN: blicket blicket dax OUT: YELLOW YELLOW YELLOW
IN: wif tufa fep OUT: PURPLE RED
IN: blicket dax OUT: YELLOW YELLOW
IN: blicket fep gazzer wif OUT: YELLOW RED PURPLE
IN: blicket fep tufa lug OUT: YELLOW RED GREEN
IN: lug fep dax OUT: GREEN RED RED
IN: lug blicket dax gazzer wif OUT: GREEN YELLOW YELLOW PURPLE
IN: wif dax OUT: PURPLE PURPLE
IN: wif tufa blicket OUT: PURPLE YELLOW
IN: blicket blicket fep blicket blicket OUT: YELLOW YELLOW RED YELLOW YELLOW

*QUERY*
IN: lug tufa lug OUT: GREEN GREEN
IN: lug wif blicket gazzer blicket OUT: GREEN PURPLE YELLOW YELLOW
IN: fep dax OUT: RED RED
IN: lug dax OUT: GREEN GREEN
IN: fep tufa fep gazzer lug OUT: RED RED GREEN
IN: fep wif tufa blicket OUT: RED PURPLE YELLOW
IN: wif blicket tufa wif gazzer wif gazzer fep OUT: PURPLE YELLOW PURPLE PURPLE RED
IN: lug lug blicket gazzer blicket OUT: GREEN GREEN YELLOW YELLOW
IN: fep OUT: RED
IN: fep wif dax OUT: RED PURPLE PURPLE

*GRAMMAR*
blicket -> YELLOW 
 lug -> GREEN 
 wif -> PURPLE 
 fep -> RED 
 x1 gazzer u1 -> [x1] [u1] 
 u1 dax -> [u1] [u1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 