Per 
SCP-131-A through C. Notice the blue Eye Pod on the far right.
Special Containment Procedures: SCP-131-C is to be kept in the same chamber as SCP-131-A and SCP-131-B during times when SCP-131 isn't allowed out of its cell. During times when it IS allowed, SCP-131-C is allowed to explore as well. Casual contact is allowed.
Description: SCP-131-C is the third part of SCP-131. It is bright blue with the same blue eye as SCP-131-A and B. The only other difference between SCP-131-C and SCP-131-A and B is that SCP-131-C has some form of sentience to it, being able to speak intelligently in most languages, including English. It's voice is high-pitched and mostly robotic sounding.1 It also acts like and claims that it is the older brother of SCP-131-A and B.
Along with those features, SCP-131-C is able to understand both humans and SCP-131-A and B, allowing interviews to successfully take place with SCP-131. Other than the factors listed, SCP-131-C is basically the same as SCP-131-A and SCP-131-B.
Interviewed: SCP-131
Interviewer: Dr. █████
<Begin Log>
Dr. █████: SCP-131-C, since you are the only one who can translate what your siblings are saying, you're going to be essential in this interview, so please give your full attention
SCP-131-C: Ok.
Dr. █████: Do you have actual names?
SCP-131-C: Yes, we do. I'm Steve, the red one is Robert, and the yellow one is Ashley.
Dr. █████: What about your ages?
SCP-131-C: I'm the oldest, and Robert is the youngest.
Dr. █████: Any exact ages?
SCP-131-C: Not that I remember.
Dr. █████: How and when were you built or born, depending on which is the case?
SCP-131-C: I don't remember either. The only parent I remember took care of us on a farm near somewhere called ████████████.
Dr. █████: So that farmer was taking care of you?
SCP-131-C: Yes… I miss him.
Dr. █████: I think I can understand why. Well, there are multiple people working here, including those who take care of you and your siblings. And not only that, you're also allowed to wander almost the entirety of Light Containment Zone.
SCP-131-C: True… So, you were the ones who took Robert and Ashley?
Dr. █████: Yes.
SCP-131-C: Dude, I was terrified that something might've happened to them. I was scared.
Dr. █████: Well, I'm sorry we scared you. Anyway, last question: Are there any other of you guys that you or your siblings know about?
SCP-131-C: Turns toward Robert and Ashley and does a high-pitched babble. It then turns back to Dr. █████ after it gets its response. No, we don't.
Dr. █████: Ok, then. Thank you for your cooperation, Steve.
SCP-131-C: You're welcome.
<End Log>
After the interview, SCP-131 was let loose to explore Light Containment Zone.
Addendum: On █/██/2███, SCP-131-C was discovered outside Site-19 in a considerable amount of distress. Thanks to SCP-8654-B, we were able to pinpoint its exact location and bring it into Foundation custody, where it showed great happiness when it saw SCP-131-A and SCP-131-B.
