****** SHRDLU States and What They Want ***** READY (types out READY) English sentence ended with punctuation, or to go to COMMAND COMMAND (types out >>>) Command terminated by or T,NIL or -P to proceed program or GO to prepare for new sentence or HELP for help messages (of which this is one) REQUEST (types out request) CHOOSE (request ends with ?) Enough of any choice to specify it, followed by or ? to see information and choices or QUIT to abort command SPECIFY (request ends with :) Name or list, ended with or just for default value (if appropriate) or QUIT to abort command or ? for info Abbreviate commands by first two letters. @