import tensorflow as tf

        gh = tf.get_variable("gh", [nh*4], initializer=tf.constant_initializer(1.0))
        bh = tf.get_variable("bh", [nh*4], initializer=tf.constant_initializer(0.0))

        b  = tf.get_variable("b",  [nh*4], initializer=tf.constant_initializer(0.0))

        gc = tf.get_variable("gc", [nh], initializer=tf.constant_initializer(1.0))
