what is the most home runs by an mlb team in a game in 1989

The Cleveland Indians and the Chicago Cubs were tied for the most home runs in a game in 1989, with 6 homers.

Interpreted as:

What is the most home runs by an MLB team in a regular-season game in 1989?

	TEAM	HR	DATE	TM		OPP	RESULT	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Indians	6	6/24/1989	CLE	@	TEX	W 7-3	33	7	6	0	0	7	2	0	10	0	0	35	24	6	0	0	0	0	.182	.229	.727	.956
2	Cubs	6	6/4/1989	CHC	@	STL	W 11-3	36	11	11	1	2	10	6	0	6	0	0	42	34	9	0	0	0	2	.306	.405	.944	1.349
3	Tigers	5	8/18/1989	DET	vs	NYY	W 7-3	34	7	9	1	0	7	3	0	7	0	0	37	25	6	0	0	0	0	.265	.324	.735	1.060
4	Expos	5	7/23/1989	MON	vs	CIN	W 12-4	37	12	17	2	0	11	6	1	6	0	0	45	34	7	1	0	0	3	.459	.545	.919	1.464
5	Royals	5	7/14/1989	KCR	@	NYY	W 14-5	42	14	18	2	0	14	3	1	8	3	0	46	35	7	0	0	1	1	.429	.478	.833	1.312
6	Yankees	5	6/4/1989	NYY	@	MIL	W 12-9	40	12	10	1	0	9	6	0	6	0	0	46	26	6	0	0	0	1	.250	.348	.650	.998
7	Brewers	5	4/25/1989	MIL	vs	MIN	W 10-4	34	10	12	2	1	10	4	1	2	1	0	40	31	8	0	1	0	2	.353	.425	.912	1.337
8	Royals	4	9/27/1989	KCR	@	CAL	W 8-3	34	8	9	0	0	8	6	0	11	1	0	40	21	4	0	0	0	2	.265	.375	.618	.993
9	Blue Jays	4	8/23/1989	TOR	vs	DET	W 11-4	35	11	13	3	1	11	4	1	2	0	0	41	30	8	0	1	0	0	.371	.439	.857	1.296
10	Angels	4	8/19/1989	CAL	vs	CLE	W 7-4	32	7	10	0	0	7	5	0	4	0	0	37	22	4	0	0	0	1	.313	.405	.688	1.093
11	Phillies	4	8/12/1989	PHI	@	CHC	L 7-9	37	7	10	1	1	6	5	1	4	0	0	44	25	6	1	0	0	0	.270	.372	.676	1.048
12	Indians	4	8/11/1989	CLE	vs	MIL	L 7-8	39	7	13	0	0	7	3	0	5	0	0	42	25	4	0	0	0	1	.333	.381	.641	1.022
13	Rangers	4	8/11/1989	TEX	vs	DET	W 7-3	34	7	11	2	0	7	4	0	9	2	1	38	25	6	0	0	0	0	.324	.395	.735	1.130
14	Phillies	4	8/10/1989	PHI	@	CHC	W 16-13	43	16	17	2	0	15	7	0	7	1	0	51	31	6	0	1	0	0	.395	.471	.721	1.192
15	Giants	4	8/9/1989	SFG	vs	CIN	W 10-1	34	10	12	0	2	10	4	1	8	1	0	40	28	6	1	0	1	0	.353	.436	.824	1.259
16	Astros	4	8/8/1989	HOU	@	SDP	W 12-3	41	12	13	2	0	12	4	0	2	0	0	47	27	6	2	0	0	1	.317	.378	.659	1.036
17	Reds	4	8/8/1989	CIN	@	SFG	W 10-4	39	10	11	2	0	9	4	0	4	0	0	44	25	6	1	0	0	0	.282	.349	.641	.990
18	Mariners	4	8/5/1989	SEA	vs	OAK	W 11-5	35	11	12	2	0	11	4	1	3	1	0	41	26	6	1	0	0	1	.343	.425	.743	1.168
19	Braves	4	8/5/1989	ATL	@	CIN	W 7-1	35	7	10	3	0	6	7	0	6	0	0	44	25	7	0	2	3	0	.286	.386	.714	1.101
20	Cubs	4	7/31/1989	CHC	@	PHI	W 10-2	39	10	13	2	0	10	4	0	4	1	0	44	27	6	1	0	2	0	.333	.395	.692	1.088
21	Astros	4	7/29/1989	HOU	vs	SFG	W 8-1	32	8	11	1	0	8	3	0	3	1	0	37	24	5	1	1	0	0	.344	.389	.750	1.139
22	Blue Jays	4	7/24/1989	TOR	@	TEX	W 6-3	37	6	11	1	0	6	5	0	6	0	0	43	24	5	1	0	0	0	.297	.381	.649	1.030
23	Brewers	4	7/23/1989	MIL	vs	MIN	W 4-1	31	4	10	1	0	4	3	0	3	1	1	34	23	5	0	0	0	0	.323	.382	.742	1.124
24	Indians	4	7/19/1989	CLE	@	MIN	W 10-1	36	10	11	1	2	10	3	0	6	1	0	41	28	7	0	2	0	0	.306	.341	.778	1.119
25	Phillies	4	7/19/1989	PHI	@	CIN	W 9-4	41	9	16	1	1	9	1	0	1	1	1	42	31	6	0	0	0	0	.390	.405	.756	1.161