In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Passage: Harrison first introduced "Something" at a Beatles session on 19 September 1968, when he played it to George Martin's stand-in as producer of The Beatles, Chris Thomas, while the latter was working out the harpsichord part for Harrison's track "Piggies". Despite Thomas's enthusiasm for the new composition, Harrison chose to focus on "Piggies". He told Thomas that he intended to offer "Something" to singer Jackie Lomax, whose debut album Harrison was producing for Apple Records. "Something" was not among the tracks released on Lomax's album, however, much of which was recorded in Los Angeles following the completion of the White Album.After Harrison rejoined the Beatles in January 1969 for their Get Back film project (later released as Let It Be), "Something" was one of many recent compositions that he offered to the group. Leng describes this period as a prolific one for Harrison as a songwriter, comparing it with John Lennon's peak of creativity over 196364, yet Harrison's songs received little interest from Lennon and McCartney amid the tense, uncooperative atmosphere within the band. Martin was also unimpressed by "Something" at first, considering it "too weak and derivative", according to music journalist Mikal Gilmore.The Beatles rehearsed the song at Apple Studio on 28 January. With the proceedings being recorded by director Michael Lindsay-Hogg for the planned documentary film, tapes reveal Harrison discussing his unfinished lyrics for "Something" with Lennon and McCartney, since he had been unable to complete the song's second line, which begins "Attracts me ..." To serve as a temporary filler, Lennon suggested "like a cauliflower", which Harrison then altered to "like a pomegranate". In their study of the available tapes, Doug Sulpy and Ray Schweighardt write that the Beatles gave the song two run-throughs that day, which was the only occasion that they attempted it during the Get Back/Let It Be project.
Question: What was the first name of the person who was unimpressed by "Something" at first?
George.