import tensorflow as tf

            outer = tf.matmul(tf.expand_dims(tf.nn.softmax(logits1), axis=2),
                              tf.expand_dims(tf.nn.softmax(logits2), axis=1))
            outer = tf.matrix_band_part(outer, 0, config.ans_limit)
            self.yp1 = tf.argmax(tf.reduce_max(outer, axis=2), axis=1)
