Read the text and determine if the sentence is true:

Temple of the Dog is the only studio album by the American rock band Temple of the Dog, released on April 16, 1991, through A&M Records. The album is a tribute to Andrew Wood, the former lead singer of Malfunkshun and Mother Love Bone, who died on March 19, 1990, of a heroin overdose. The album has been certified platinum by the RIAA in the United States.

Sentence: It took less than 18 months from the time the album was conceived until it's release.
It's impossible to say