Johnny Galecki. He is known for playing David Healy in the ABC sitcom Roseanne from 1992 - 1997 and Dr. Leonard Hofstadter in the CBS sitcom The Big Bang Theory since 2007.
Johnny Galecki plays a character with a Ph.D. in The Big Bang Theory.
Johnny Galecki. He is known for playing David Healy in the ABC sitcom Roseanne from 1992 - 1997 and Dr. Leonard Hofstadter in the CBS sitcom The Big Bang Theory since 2007.

Generate a claim based on the evidence above which would have veracity supported
Johnny Galecki plays a character with a Ph.D. in The Big Bang Theory.
Johnny Galecki. He is known for playing David Healy in the ABC sitcom Roseanne from 1992 - 1997 and Dr. Leonard Hofstadter in the CBS sitcom The Big Bang Theory since 2007.

Generate a claim based on the evidence above which would have veracity supported
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Johnny Galecki plays a character with a Ph.D. in The Big Bang Theory.
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