Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Iittala Aalto 6-1/4-Inch Aalto Vase, Sand
Product description: iittala's 6-1/4-Inch Sand Aalto Glass Vase is a work of art. Inspired by Alvar Aalto, this vase exemplifies Finnish Glass Art and a long histroy of nature inspired glass vases. This white with sand interior vase was formed for the 2007 collection, making it the latest Aalto inspired vase from iittala. Aalto created organic, flexable forms that lends each vase towards the "celebration of light". His wavy, free form form has been translated into architecture, armchairs, screens and even tea trolleys. Each vase is made in Finland and should be treasured and enjoyed every day. Only from iittala.
Product feature: Inspired by Finnish architect Alvar Aalto's award-winning 1936 vase, Free-form shape in a mineral-rich sand color, Aalto's name inscribed on bottom of vase, Measures 6-1/4 inches high; wash by hand, Made in Finland
Product brand: Iittala
Target attributes: Special Occasion
Answer: attribute: special occasion
value: None
source: None