 Later, his mother Julianna appears in the episode " Inheritance " and reunites with Data, though the crew discovers she was an android duplicate built by Soongafter the real Julianna's death, programmed to die after a long life, and to believe she is the true Julianna unaware of the fact she is an android.
<meaning-changed>  Later, his mother Julianna appears in the episode " Inheritance " and reunites with Data, though the crew discovers she was an android duplicate built by Soongafter the real Julianna's death, programmed to die after a long life, and to believe she is the true Julianna unaware of the fact she is an android.
 Although several androids, robots, and artificial intelligences were seen in the original Star Trek series ( " Inheritance " and reunites with Data, though the crew discovers she was an android duplicate built by Soongafter the real Julianna's death, programmed to die after a long life, and to believe she is the true Julianna unaware of the fact she is an android.