In addition to Arabic and Turkish, Person2 also knows Persian to the level that you can hear her sound very normally engaged in conversation with a native speaker. I had never heard about any effort put to teach her that. She appears to have just picked it from person1 who himself picked it because his father worked in a religious site visited by people from other countries including Iran. That was before my birth. Afterwards, on the other hand, hours and hours were spent for years and years in teaching person2 this language for barely any result. She looked like internally shutting herself down not to allow entry for the knowledge she was receiving. She kept explaining that situation saying "Knowledge during the early age is like engraving in the stone" (An Arabic adage). It had many times entered my mind that her saying of that is connected to me but I disregarded it as far fetched. But one day she said it and looked at me while smiling and even though there was no teaching lesson going on. This is special in indicating how much all the existence discounting pressure I had was part of a plan they were deeply aware of.
There is also a similar incident I experienced while sitting among them and hearing one of them expressing how he was during an earlier paranoia period. He said "I became suspicious of the closest close to me" and I noticed person3 glanced at me from the corner of his eye. I take what was said as having came from the speaker's assumption for himself of my position there and take the look I got as being to check if I detected any thing about my situation from hearing that.
But of course all that at the time felt like a barely moving the hair wind blocked by the thick concrete wall of the depth of characters not fitting the reality about themselves they can show.