V10/vol2/index/finddups

awk '
	{
	if(first == 0){
		first = 1
		lastline = $0
		word = $1
		next
	}
	if($1 == word && $2 !~ /[a-zA-Z]/&& length($2) > 1 && $0 ~ /^ /){
		sub(/.* /,", ",$0)
		print lastline $0
		first = 0
	}
	else {
		print lastline
		lastline = $0
		word = $1
	}
	}
END	{
	print lastline
}
'