Stacked spectra of L1495B for C₉H₈ (left panel), C₅H₆ (middle panel), and 1-C₅H₅CN (right panel), using the 14_0, 14–13_0, 13 line at 32528.329 MHz, the 3_1, 2–2_2, 1 line at 37453.992 MHz, and the 10_0, 10–9_0, 9 line at 33050.464 MHz as references, respectively. The number of stacked lines and the significance level of the line stack signal (in units of σ) is indicated in each panel. The systemic velocity of L1495B is indicated by a vertical dotted line.