package seedu.address.logic.commands;


/**
 * Lists all persons in the address book to the user.
 */
public class ListCommand extends Command {

    public static final String COMMAND_WORD = "list";

    public static final String MESSAGE_SUCCESS = "Listed all persons";


    @Override
    public CommandResult execute() {
        model.updateFilteredListToShowAll();
        return new CommandResult(MESSAGE_SUCCESS);
    }
}

@@ -192,16 +192,229 @@
  %22list%22;
+%0A    public static final String COMMAND_WORD_SUFFIX_TITLE = %22list title%22;%0A    public static final String COMMAND_WORD_SUFFIX_DATE = %22list date%22;%0A    public static final String COMMAND_WORD_SUFFIX_TAG = %22list tag%22;
 %0A%0A    pu
@@ -468,22 +468,20 @@
 ted all 
-person
+item
 s%22;%0A%0A%0A  

Add different command trigger in the ListCommand object