label: a beta-D-galactofuranoside + UDP-alpha-D-galactofuranose <=> a beta-D-Galf-(1->5)-beta-D-galactofuranoside + UDP + H(+)
label_lc: a beta-d-galactofuranoside + udp-alpha-d-galactofuranose <=> a beta-d-galf-(1->5)-beta-d-galactofuranoside + udp + h(+)