The Supreme Court said today states may bar the removal of life-sustaining treatment from comatose patients who have not made or cannot make their desires known.
States can keep coma patients alive if they do not have a living will. 
( z1 possible :ARG1 ( z2 keep :ARG0 ( z3 state ) :ARG1 ( z4 live :ARG0 ( z5 patient :mod ( z6 coma ) ) ) ) :condition ( z7 have :polarity - :ARG0 z5 :ARG1 ( z8 will :ARG0 z5 :ARG1 ( z9 live :ARG0 z5 ) ) ) )