With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mr. Sunshine was a movie.
text_B: The T-Mobile myTouch Q by LG -LRB- C800 -RRB- and the T-Mobile myTouch by LG -LRB- E739 -RRB- are smartphones designed and manufactured by LG Corporation for T-Mobile USA 's `` myTouch '' re-branded series of phones .. LG Corporation. LG Corporation. myTouch. myTouch. T-Mobile USA. T-Mobile USA. They run the Android 2.3.6 `` Gingerbread '' software .. Android. Android ( operating system ). CyanogenMod supports the myTouch by LG .. myTouch. myTouch. CyanogenMod. CyanogenMod. The two phones have similar features except for these differences  :. The `` Q '' does have a slider-keyboard , the non-Q is a keyboardless design ,. The `` Q '' is both thicker and heavier than the non-Q ,. The screen on the `` Q '' is smaller than that on the non-Q ,. The `` Q '' does not have a front-facing camera , the non-Q does have one with VGA-resolution ,. VGA. VGA. The `` Q '' has a camera feature called `` Auto Snap on Smile '' that the non-Q apparently does not have .
not_related.