Provide structures for these naturally occurring compounds:

(a) 2, 6-Diaminohexanoic acid (lysine, an amino acid)

(b) Hex-2-en-1-yl acetate (sex attractant of Indian water bug)

(c) (Z)-7-Dogecen-1-yl acetate (sex attractant of elephant and moths)

(d) (Z, Z)-9, 12-Octadecadienioc acid (linoleic acid, a polyunsaturated fatty acid) (octadec = 18) 

(e) (all E)-3, 7-Dimethyl-9-(2, 6, 6-trimethylcyclohex-1-en-1-yl) nona-2, 4, 6, 8-tetraenal (all-trans-retinal, or vitamin A aldehydes)

(f) (E)-N-(4_Hydroxy-3-methoxybenzyl)-8-methyl-6-nonenamide (capsaicin, the hot ingredient in chili peppers) (benzyl is PhCH2)