Do not use contacts for bigram prediction.

        mLastLoadedContacts = SystemClock.uptimeMillis();

    }

    @Override

    public void getBigrams(final WordComposer codes, final CharSequence previousWord,

            final WordCallback callback) {

        // Do not return bigrams from Contacts when nothing was typed.

        if (codes.size() <= 0) return;

        super.getBigrams(codes, previousWord, callback);

    }

    private void addWords(Cursor cursor) {

        clearDictionary();