What is the relationship between National Semiconductor and Texas Instruments in the context of the input sentence. Choose an answer from: 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.

National Semiconductor rose 7.4 percent, or $1.74, to $25.39 and Texas Instruments shares added 3.6 percent, or $1.11, to $32.09, also on the Big Board.

Answer: parent_organization