Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

3D Systems DDD: With total sales of $653.7 million for the financial year 2014, the Zacks Rank #3 (Hold) stock’s portfolio boasts industry-leading 3D printing technologies like Stereolithography, Selective Laser Sintering and ColorJet Printing, among others.

Answer: industry: 3D Systems, 3D printing