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

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

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