Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Alldaymall A70M Dual Core - Android 4.2 Tablet PC MID with 7 Inch Capacitive Touchscreen (4GB, WiFi, 1.5GHz, Dual Camera, HDMI) Red
Product description: Alldaymall owns this trademark exclusively. Summary: Operating System: Android 4.2 Screen Size: 7 inches Max Screen Resolution: 800 x 480 pixels Processor: Up to 1.5GHz VIA8880 Dual Core RAM: 512MB Hard Drive Capacity: 4GB NAND Fast Flash Extend Card: Supports up to 32GB TF card Display Technology: 5-point capacitive touchscreen Features: WiFi, Dual Camera, HDMI Battery Power: Battery Type: 2400mAh rechargeable battery Run Time (Up to): 3 hours Power Device Type: AC Adapter Voltage Required: 100-240V, DC 5V/2A Communications: 3G: External 3G Wireless Connection: Wi-Fi Wireless Protocol: 802.11b/g/n Input/Output Connectors: USB Port: 1 x Micro USB port Audio Port: 1 x 3.5mm stereo headphone jack Video Port: 1 x HDMI Output Extend Card Slot: 1 x TF Card slot DC Input: 1 x DC 5V 2.5mm Jack Additional Features/Functions: Camera: Front Camera:0.3MP, Back Camera:0.3MP HDMI: Support HDMI output G-Sensor: Yes Audio: Built-in speaker, microphone Software: Google Play, Youtube, Skype, Email... What's in the Box: 1 x Tablet PC 1 x USB Cable 1 x Charger 1 x User Manual
Product feature: CPU: VIA8880 Dual Core Cortex-A9 1.5GHz, Android 4.2: This Android Tablet is a brilliantly constructed piece of hardware merged with the Google Android 4.2 to provide end users with amazing modern day functionality on the go for their daily communication and entertainment needs., Storage: It is 4 GB of built-in storage, but you're free to expand that storage capability by up to 32 GB TF card ( micro SD memory card). Simply slide an TF card in and enjoy photo slideshows, music playback, and even video playback!, WIFI: The built-in WiFi in this tablet supports WiFi 802.11b/g/n to make it easy for users to Check emails, Connect online, Downloads or Surf the Web with advanced WIFI technology., Dual Camera: With a 0.3MP Front Camera and 0.3MP Back Camera ,the tablet make it possible to enjoy the video chat and taking pictures whenever you want and need.
Product brand: Alldaymall
Target attributes: Screen Size
Answer: attribute: screen size
value: 7 inch
source: product title
attribute: screen size
value: 7 inches
source: product description