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: iPad Air 2 Case, i-Blason ArmorBox [Dual Layer] Convertible [Heavy Duty] Full-Body Protection KickStand Case with Built-in Screen Protector for Kids Friendly 2014 Release (Black)...
2nd: HDE Plastic Hard Case and Keyboard Cover for MacBook Pro 13 Inch Retina Display (Models: A1425/A1502). Electronics. Computers & Accessories. HDE.
3rd: HDE Plastic Hard Shell Case and Keyboard Cover for MacBook Pro 13 with Retina Display (Models: A1425/A1502), Orange. Electronics. Computers & Accessories. HDE.

Options:
A: SiteLite Mag Laser Boresighter. Sports & Outdoors. Sports & Fitness. SiteLite.
B: Koss RUK 30K Noise Isolating In-Ear Stereophone, Black. Electronics. Headphones. Koss.
C: Factory Direct Craft Artificial Sunflower Kissing Ball. Home & Kitchen. Home Dcor. Factory Direct Craft.
D: 45 Lb. V-Force Weight Vest - Made in USA. Sports & Outdoors. Sports & Fitness. Weight Vest.
E: Beer The Reason I Get Up Every Afternoon Distressed Retro Vintage Tin Sign Tin Sign , 16x13. Home & Kitchen. Home Dcor. Poster Discount.
F: HDE Plastic Hard Shell Case and Keyboard Cover for MacBook Pro 13 with Retina Display (Models: A1425/A1502), Black Flowers. Electronics. Computers & Accessories. HDE.
G: Nsstar 5ml Refillable Perfume Spray Bottle Case Portable Travel Perfume Atomizer,Package of 6. Home & Kitchen. Home Dcor. NSSTAR.
H: SanDisk 32 MB CompactFlash Card. Electronics. Computers & Accessories. SanDisk.
I: Outdoor Research Men's Exit Hoody. Sports & Outdoors. Outdoor Recreation. Outdoor Research.
J: Rat Hot Rods Torque Brothers Speed Shop Tin Sign 13 x 16in. Home & Kitchen. Home Dcor. Desperate Enterprises.
K: Heat Shrink Home Canning Labels Quart Jar Combo Pack. Home & Kitchen. Kitchen & Dining. Modern Harvest.
L: Ameriwood Home 5206026PCOM Landry Microwave Cart, Black Oak. Home & Kitchen. Furniture. Ameriwood Home.
M: Disney Star Wars Characters Blanket. Home & Kitchen. Bedding. Disney.
N: #1 Bed Sheet Set on Amazon - Super Silky Soft - SALE - HIGHEST QUALITY 1500 Thread Count Egyptian Quality Luxurious Wrinkle, Fade, Stain Resistant...
O: Vertical Spice - 222x1.5x11 DC - Spice Rack - 3 Drawers - 15 Regular/15 Half-size Capacity - Cabinet Mounted. Home & Kitchen. Kitchen & Dining...
P: Marware Eco-Vue Leather Kindle Folio, Teal (Fits Kindle Keyboard). Electronics. Computers & Accessories. Marware.
Q: Case Logic SDWS-101 Saigon DSLR Wrist Strap (Triangle). Electronics. Camera & Photo. Case Logic.
R: NeatLinks, Humanscale Large 17" - Under Desk Cable Management, Material: 100% Recyclable Plastic, Dimensions: Diameter: 3.6" x 17"L, Color: Black, Qty: 1. Electronics. Accessories &...
S: LG WH16NS40 16X Blu-ray BD/BDXL/MD M-DISC Burner Drive 3D Playback + free Nero 12 Essentials Burning Software + Sata Cable Kit. Electronics. Computers & Accessories...
T: ProAdvanced ProInfinity Putting Mat. Sports & Outdoors. Sports & Fitness. ProAdvanced.


assistant
Answer: F