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: Rank items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
Purchase History:
1st: Maximal Power 62mm Lens Filter Kit Includes Circular Polarizer, UV and Star Lens Filter Kit for 62mm Camera Lens (Black). Electronics. Camera & Photo. MaximalPower.
2nd: Zeikos 52MM Multi-Coated UV-CPL-FLD Professional Lens Filter Kit, Includes Miracle Fiber Cloth and Carry Pouch, Set for Nikon and Canon Lenses with a 52 MM...

Options:
A: Toshiba DVR670/DVR670KU DVD/VHS Recorder with Built in Tuner, Black (2009 Model). Electronics. Television & Video. Toshiba.
B: Lifewit Leather Vintage Canvas Laptop Bag, 13"(L)x10.5"(H) x 4.1"(W), Grey. Electronics. Computers & Accessories. Lifewit.
C: Sterilite Corp. 15848006 Large Ultra Caddy. Home & Kitchen. Bath. STERILITE.
D: HDE Ultra Thin Silicone Rubber Keyboard Skin Cover for MacBook Pro Non Retina 13/15/17 (Pink and Purple Checkered). Electronics. Computers & Accessories. HDE.
E: Farberware Food Slicer with Four Blades, White. Home & Kitchen. Kitchen & Dining. Farberware.
F: Five Star Cable 1000 ft. RG59 Siamese CCTV Combo Coaxial Cable White - 20AWG RG59 + 18/2 18AWG Power. Electronics. Accessories & Supplies. Five Star...
G: Phantom Aquatics Walrus 25 Premium Waterproof Backpack Dry Bag. Sports & Outdoors. Outdoor Recreation. Phantom Aquatics.
H: Fujifilm Fujichrome Velvia 50 Color Slide Film ISO 50, 120 size, 5 Roll Pro Pack. Electronics. Camera & Photo. Fujifilm.
I: Eornmor Super Bright Tactical Cree LED 1000 Lm Display Rechargeable Waterproof LED Flashlight Wrist Watch Torch Light. Sports & Outdoors. Sports & Fitness. Eornmor.
J: OPMOD P.A.C. 3.0 Personal Articles Carrier Bag, Green SV-SMLPKBG-OPMD-GRN02.
K: Thermalvoile Rhapsody Lined panels. Home & Kitchen. Home Dcor. Thermalogic.
L: DROK 090612 Buck Power Converter 12V to 5V 3A DC-DC Voltage Transformer Step-down Volt Regulator Inverter with Type-A Female USB Interface for iPhone iPad Phone...
M: Tervis Straight 6-pk. Fashion Color Straws,Multicolor,9". Home & Kitchen. Kitchen & Dining. Tervis.
N: Manduka Belong Body Roller. Sports & Outdoors. Sports & Fitness. Manduka.
O: HEAD Women's Night Runner Fleece Vest. Sports & Outdoors. Sports & Fitness.
P: Crumpler 7 MILLION DOLLAR HOME Shoulder Photo Bag (Dark Brown/Oatmeal/Light Olive). Electronics. Camera & Photo. Crumpler.
Q: Ebonite Abralon Bowling Pads (Set of 3). Sports & Outdoors. Sports & Fitness. Ebonite.
R: Zeikos 58MM Multi-Coated UV-CPL-FLD Professional Lens Filter Kit, Includes Miracle Fiber Cloth and Carry Pouch, Set for Nikon and Canon Lenses with a 58 MM...
S: Studio B  The Zen Poster. Home & Kitchen. Wall Art. Studio B.
T: Xscorpion (GC-3OW Off-White 36" x 66" UV Treated Speaker/Subwoofer Grille Cloth. Electronics. Accessories & Supplies. Xscorpion.


assistant
Answer: R