Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. The microbially-driven Fenton reaction combines abiotic and biotic reactions in one system by utilizing the H2O2 and Fe-producing microorganism Shewanella putrefaciens to generate Fenton reagents as metabolic by-products of alternating aerobic and anaerobic respiration. The variable part is specific to the dot code, whereas the fixed part is common to the dot codes. The cleaner comprises N-methyl pyrrolidone in a concentration of fifty percent by weight or greater and a surfactant. Pressurized water expands the elongated inner tube member longitudinally along a length of the inner tube member and laterally across a width of the inner tube member thereby substantially increasing the length of the hose to an expanded condition wherein the hose contracts to a substantially decreased length when there is a decrease in pressurized water.