Task: Sequential_Recommendation

system
You are a helpful assistant. The assistant first thinks about the reasoning process in the mind by using Belief-Desire-Intention (BDI) framework and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and <answer> </answer> tags, respectively. 
Below is an instruction that describes a task. After thinking, when you finally reach a conclusion based on the customer's intention, desire and belief, clearly state the BDI thinking process within <think> </think> and then the answer within <answer> </answer> tags.


user 
Instruction: Based on the user's historical purchases, rank the items in options and predict the next product of the user's interest from the provided options.

Input:
Purchase History:
1st: FiiO E10 USB DAC Headphone Amplifier. Electronics. Car & Vehicle Electronics. FiiO.
2nd: TOPPING TP21 Class T Digital Mini Amplifier with Headphone 25 WPC. Electronics. Accessories & Supplies. Topping.
3rd: Blue Crane Digital Shoot Great Video with Your Canon DSLR Camera 2nd Edition  (zBC207). Electronics. Camera & Photo. Blue Crane Digital.
4th: Seagate GoFlex Desk 3TB External Hard Drive for Mac in Black with Thunderbolt Adapter STBC3000102. Electronics. Computers & Accessories. Seagate.
5th: Philips ShoqBox SB7200 Bluetooth Wireless Speaker (Black). Electronics. Portable Audio & Video. Philips.
6th: JBL Charge Portable Wireless Bluetooth Speaker (Green). Electronics. Portable Audio & Video. JBL.
7th: Samsung UN85S9 Framed 85-Inch 4K Ultra HD 3D Smart LED TV. Electronics. Television & Video. Samsung.
8th: Wacom Intuos Pen Small Tablet (CTL480) (Old Version). Electronics. Computers & Accessories. Wacom.
9th: Nikon MB-D11 Multi-Power Battery Pack for Nikon D7000 Digital SLR Camera - Retail Packaging. Electronics. Camera & Photo. Nikon.
10th: Kinivo BTH240 Bluetooth Stereo Headphone Supports Wireless Music Streaming and Hands-Free calling - Red. Electronics. Headphones. Kinivo.
11th: Magnus VT-3000 Professional High Performance Tripod System with Fluid Head. Electronics. Camera & Photo. Magnus.

Options:
A: Toilet Tattoos, Toilet Seat Cover Decal,Deer Creek, Size Elongated. Home & Kitchen. Bath. Toilet Tattoos.
B: ZOTAC NVIDIA GeForce GTX 660 2GB GDDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card ZT-60901-10M. Electronics. Computers & Accessories. ZOTAC.
C: Happy Sales Ramen Udong Noodle Soup Cereal Bowl w/Chopsticks (Blossom). Home & Kitchen. Kitchen & Dining. Happy Sales.
D: ARSUXEO Cycling Sleeves Armwarmers MTB Sleeves Arm Warmer UV Protection XTN01. Sports & Outdoors. Outdoor Recreation. ARSUXEO.
E: Anker Ultra Slim 4-Port USB 3.0 Data Hub with 3.3ft USB 3.0 Extension Cable. Electronics. Computers & Accessories. Anker.
F: Royal Doulton Maze Teal Mug, 14 oz, Green. Home & Kitchen. Kitchen & Dining. Royal Doulton.
G: Super Speed USB 3.0 Cable A to Micro B for External Hard Drives (SaiTech IT-001). Electronics. Computers & Accessories. SaiTech IT.
H: Corelle Livingware 76-Piece Dinnerware Set, Service for 12, Winter Frost White. Home & Kitchen. Kitchen & Dining. Corelle.
I: niceeshop(TM) Black DC 1 Female to 4 Male Power Splitter Cable Y Adapter for CCTV. Electronics. Accessories & Supplies. niceeshop.
J: Bradychan V4.0+EDR HV-800 Bluetooth 4.0 Neckband Sport Stereo Headset for Smartphones & Bluetooth Enabled Tablets - 3-Piece - Pink. Electronics. Headphones. Bradychan.
K: MyGift Wall Mounted Rustic Bronze Decorative Metal Tree Branch Design 3 Coat Hooks Storage Hanger Rack. Home & Kitchen. Storage & Organization. MyGift.
L: Celtic Pentagram Altar Table 7 1/2". Home & Kitchen. Furniture. AzureGreen.
M: Solar Shower Bag, Topist 5 Gallon Outdoor Solar Energy Heated Camp Portable Shower PVC Water Bag with On/ Off Nozzle for Camping, Hiking, Traveling, Backpacking...
N: Cokin P253 Filter Adapter Cap, Series P. Electronics. Camera & Photo. Cokin.
O: Skye Supply Swell Cow Bell. Sports & Outdoors. Outdoor Recreation. Skye Supply.
P: Beach Umbrellas & Adirondack Chairs Coffee Latte Mug. Home & Kitchen. Kitchen & Dining. Cape Shore.
Q: Replacement PS/2 Keyboard to USB Adapter - F/M - PS/2 to USB. Electronics. Computers & Accessories. StarTech.
R: ORCA Silo Growler Cup 64 0z. Home & Kitchen. Kitchen & Dining. ORCA.
S: [DISCONTINUED] Samsung 840 EVO 500GB 2.5-Inch SATA III Internal SSD (MZ-7TE500BW). Electronics. Computers & Accessories. Samsung.
T: 4+1 USB 2.0 Firewire 1394 Ports Combo Pci Card. Electronics. Computers & Accessories. ZONET Networking.


assistant
Answer: S