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

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

*GRAMMAR*
tufa -> RED 
 fep -> PURPLE 
 lug -> YELLOW 
 wif -> GREEN 
 x1 dax x2 -> [x1] [x1] [x2] 
 x1 blicket -> [x1] [x1] 
 u1 zup u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 