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

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

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